Compare Methods Solving

In this video the instructor shows how to add and subtract rational expressions. When you have an addition or subtraction problem of rational expressions, first look and compare the denominator of all the terms. If all of them have the same denominator then the expression can ...more

When you are solving inequality for a rational function you don't do it the same way as you would solve an equality. Now the instructor shows how to solve an inequality with the help of an example. Now to solve an inequality which is in the form a/b first take the numerator an ...more

A video from free math tutoring that teaches you a method of factorization of a complex polynomial. The tutor shown in the video demonstrates how to factorize common functions of a variable by the factor method. This video isn't for advanced learners of mathematics. It is for ...more

In this tutorial the instructor shows how to solve linear and quadratic equations. It is a liner quadratic system where he shows a parabola and a straight line and he intends to solve the points where the line intersects the parabola. Now he uses comparison to compare the valu ...more

Check out this three-part video tutorial on how to solve the Rubik's Cube intuitively and without algorithms. With this method there is no need to memorize complicated algorithms. Crack the Cube with sheer brain power, if you can. No one said you had to be a genius to solve a ...more

They might seem intimidating at first, but the Celtic Knot puzzles you come across in the Elite Treasure Trails in RuneScape can still be solved. No matter what puzzle you're given, this method will let you figure out a solution to all of them.

Hardened steel is very durable, but nearly impossible to work with at home. If you are trying to choose a piece of steel and can't tell if it's hardened or not, you're in luck, because this video contains a quick method for doing so. All you do is try to file an indentation in ...more

See how to use the quadratic formula to solve quadratic equations with this free video algebra lesson. Solving quadratic equations is a cinch once you know the proper method to tackle them. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and b ...more

Precious resources can be wasted if you do not have the knowledge necessary to get the most out of a fruit or vegetable. In this short but very useful how-to tutorial, you will learn how to get the most juice out of a lemon. The traditional way is to roll the lemon on the cou ...more

Video describing about how to calculate a sales tax price based on purchase price and sales tax percentage. There is one example which is described as below: Purchase price is 125.73 and sales tax is 6.5 %. To calculate a sales tax price we need to move sales tax percentage t ...more

This video is a great one on learning about evaluating fractions. The voice explains how to first plug in the numbers given for each variable in the fractions. He also explains the importance of simplifying the top and bottom first before simplifying the entire fraction. He al ...more

In this video the tutor shows how to multiply fractions. She says that compared to adding or subtracting fractions, it is easy to multiply fractions. She says that to multiply fractions first we need to multiply both the numerators together to arrive at the new numerator. Simi ...more

The Megaminx is a dodecahedron-shaped puzzle similar to the Rubik's Cube. It has a total of 50 movable pieces to rearrange, compared to the 20 of the Rubik's cube. This two-part video tutorial will show you how to solve just the last layer of the Megaminx mechanical, colored ...more

In this video, we learn how to balance chemical equations using a simple method. Start out by writing your two chemicals next to each other. After this, you will need to write out how much of each atom each of the chemicals has. Now you will have a better idea of how you need ...more

Looking for a primer on how to solve polynomials via the FOIL approach in basic algebra? From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier th ...more

Whether you're interested in learning Microsoft Excel from the bottom up or just looking to pick up a few tips and tricks, you've come to the right place. In this tutorial from everyone's favorite digital spreadsheet guru, ExcelIsFun, the 48th installment in his "Highline Exce ...more

In this how-to video, you will learn how to reduce freckles in Photoshop. This is useful for editing people who have a lot of freckles. First, open the file in Photoshop and copy the background layer. Apply a Gaussian blur to the layer. Adjust it so that the freckles are no lo ...more

New to Microsoft Excel? Looking for a tip? How about a tip so mind-blowingly useful as to qualify as a magic trick? You're in luck. In this MS Excel tutorial from ExcelIsFun, the 99th installment in their series of digital spreadsheet magic tricks, you'll learn how to use the ...more

In this Education video tutorial you will learn how to simplify an exponential expression in algebra. There are neither audio nor typed instructions in this video. It is a demonstration of the steps involved in the process. To do this, simply expand the exponentials and then m ...more

If you have a fossil, you can tell how old it is by the carbon 14 dating method. This is a formula which helps you to date a fossil by its carbon. If a fossil contains 60% of its original carbon, how old is the fossil? The half life of carbon 14 is 5600 years. That means this ...more

This is a demonstration on how to use the PLL method to solve a Rubik's cube. The author informs that what people do before and after applying the PLL technique is very important. According to him, people usually tend to first align as many faces as they can, when they see a p ...more

First you want to find X using the identities given for a 45-45-90 triangle. When comparing the triangles in the video, we find that X must be 6. Next, use the identity to solve for the measurements of the sides of the triangle. In the video example, 6 is the length of the two ...more

This how-to video explains in detail about an alternate mental subtraction method. This method is very simple if we practice this mentally rather than solving it on papers. Let's learn this method using an example, let us subtract 7589 from 9456, first we need to subtract 700 ...more

The Megaminx is a dodecahedron-shaped puzzle similar to the Rubik's Cube. It has a total of 50 movable pieces to rearrange, compared to the 20 of the Rubik's cube. This six-part video tutorial will teach you how to solve the mighty Megaminx puzzle. In order to solve the Megam ...more

In this video, we learn how to solve rational inequalities. First, you will take the problem (x-1 over x+2 is greater than 0). The first method to solve this is to think you have any number divided by another number is greater than 0. Remember the properties to solving problem ...more

This is an interesting trick to solving multiplication problems. It involves multiplying 2 double-digit numbers with hand drawn, crisscrossing lines. Say you have a multiplication problem of 13 x 21, you would draw 1 line by itself, then 3 lines, side-by-side, all parallel to ...more

Most Rubik's cubes are not well-made or well-taken care of. They creak and turn slowly, acting like the cheap pieces of plastic that they for the most part are. There are ways though, even for cheap cubes, to make them work much more quickly and smoothly than they do out of th ...more

Don't waste money on a bumper cover from Apple to save the reception on your new iPhone. In this clip, learn how to take a simple rubberband and solve all of your dropped call worries! This method is cheap, easy and well worth a shot. Best of all? It seems to work with all mod ...more

Learn how to take a quadratic equation in standard form and change the trinomial into a binomial product. Using the zero product rule, the zeros of the graph can then be found. The grouping method is effective when the leading coefficient (the number factor of the squared term ...more

Multi-Step inequalities are inequalities which take more than one step in solving them. You need to follow a step by step approach in solving these kind of problems. Through there is no general method to solve them you can follow a set of guidelines. First thing you have to do ...more

This helpful video gives simple step by step instructions on how to find area and volume of prisms. To find the area of a prism you must first find the area of the base, it may be rectangular, triangular, or otherwise. You must then multiply the area of the base times the heig ...more

Brian Padilla from Hilo Guitars demonstrates how to tune a ukulele without a tuner. To tune a ukulele without a tuner, first pluck the G string and compare it to the seventh fret of the C string and match the pitch. On the same C string drop down to the fourth fret and match t ...more

This is a great educational video on how to solve quadratic equations by factoring. Let us take an example and try to learn the method. Here is a quadratic equation: (r+7) (r-9) = 0. Consider zero-factor property. For real a and b, if a.b = 0, then a = 0 or b = 0 or both are e ...more

Learn and understand the basics of Trigonometry in this entertaining video. Taught by an experienced YayMath instructor, viewers gain knowledge in the study of trigonometry: the relationship of angles and the triangles they are in. Trigonometry is relevant in many forms of eve ...more

This video shows the method to graph a linear function by finding the X and Y intercept. Only two points are needed to graph linear functions. So we find the point on Y axis or the Y intercept and the point on the X axis or the X intercept. We notice that on the Y axis the X c ...more

In this video, the instructor shows how to collect like terms and factorize. When you are given a linear equation, the first thing you do is to try to organize it. Pair up the like terms. Add the numerical coefficients of terms with the same variables. This is called collectin ...more

You can solve systems by using the substitution method. Here are two examples. One says y=3x+2 and the second says 7x-4y=7. The math teacher explains that if y is the same thing as 3x+2, then 3x+2 can be substituted for y in 7x-4y=7. Once it is substituted, your equation will ...more

This video demonstrates how to solve a linear function with rational coefficients by multiplying by the reciprocal of the coefficient. The reciprocal is just a fancy way of saying the numerator and denominator are swapped. Two sample problems are solved using this method. Mult ...more

This is a mathematical instructional video on how to find the least common multiple. Let us now find the least common multiple for 25, 100, 18. This can be written as 5 square, 2 square multiplied by 5 square, 2 multiplied by 3 square. The highest factor in these numbers are, ...more

The one step inequalities are one of the easiest method in mathematics that you can add or subtracting the values in an equation. Consider the equation M+7=-3(Assume M+7 as left side & -3 as right side), in this you should add -7 on both sides of the equation. In the next step ...more

In this tutorial the instructor shows how to convert lengths between different units. He show a two step approach where in the first step he setups a relation between centimeters and meters showing that 100 cm equals 1 meter. Now he writes it down in a fraction form and equate ...more

This a simple video illustrating the process of addition involving fractions which have common denominators. The method is really quite easy and straightforward, as demonstrated by this video. One has to simply take the denominator of the sum as the same which is the common de ...more

In this tutorial, the author shows how to determine if a point lies on a given line which is in Point Slope Form. To show the method he takes a sample point order pair and an equation of a line in its point slope form. Now he substitutes the value of the x, y order pair and th ...more

This video shows you how to get the quadratic equation for the quadratic function with roots; (5,0), (12,0) which passes through the point(8,6). It shows a man solving this problem using a black board and chalk to clearly demonstrate the method of plugging in the respective co ...more

In this tutorial the author shows how to find out the missing part of a triangle that is similar to another triangle. He explains the concept of similar triangle diagrammatically by showing that similar triangles have similar angles and parallel sides. Now he labels sides of s ...more

In this tutorial the instructor shows how to solve ratios and proportions. He gives a two step approach to solve an equality of two fractions in which the value of a variable in unknown. He says that in the first step we should cross multiply the numbers across the diagonal. I ...more

Algebra can be difficult to wrap your head around sometimes. When it comes to Algebra, you'll need as many solving short cuts as you can get. Here is an excellent video that will teach you how to simplify Algebraic expressions using the distributive property. This informative ...more

In this tutorial the author shows how to find out the missing side of a triangle which is similar to an other triangle. He explains the concept of similar triangle using diagrams and by showing that similar triangles have equal corresponding angles and parallel sides. Now he l ...more

While dividing the radicals, the numerator and the denominator must be combined into a single term, for example if we want to divide square root of 3 by square root of seven we need to combine the numerator and denominator into a single factor that is square root of 3/7, then ...more

The video describes how to find 'x' in the algebraic equation -3x + 7x - 6 = 30 The equation is solved on a white board by hand. The method shown uses the following steps: Firstly both 'x' terms are added together to get the equation 4x - 6 = 30. Then 6 is added to both sides ...more

Find out a new way to solve the Rubik's Cube made famous by Erno Rubik, master puzzle maker. Try to get the edge pieces on the last layer using a new method called partial edge control. Just watch this video tutorial to see how to solve with partial edge control on a Rubik's C ...more

Need a little help solving the first part of the Rubik's Cube puzzle? The F2L (First Two Layers) could be tricky, and could get you back to square one if you don't know what you are doing, but don't worry, you'll be able to solve that Cube in no time. Check out this video tut ...more

This tutorial is about using logical comparisons in a sentence. We should compare only equivalent concepts. Don't compare something to a group its part of without including 'other' or 'else'. Be clear about what you are comparing. The comparisons must be between apples to appl ...more

Whatever your reasons for doing it, if you are trying to hack passwords, it helps to have the right software for getting the job done. With the Cain and Abel program, you will be well on your way to hacking even the toughest personal passwords. Visit us at bleedingedgesecurit ...more

This video describes how to divide fraction values using simple method. Example we will take as in video "12" should be divided with "1/2" that is "12%(1/2)=?". This is the example we should solve. In first step we has to flip the "Denominator" to easily find the output. So no ...more