Solving Square Roots and

Toss aside that Sudoku. Take a stab at the new craze to hit the Times: KenKen. New York Times puzzle editor Will Shortz introduces KenKen and gives a brief play-by-play demonstration of this new puzzle craze. In this video, Will Shortz speaks about how he found out about and ...more

Ever wonder what all of those letters represent in all of those Rubik's Cube solving techniques? Get the explanation of the notation used for the Rubik's Cube right here. Keep an eye out for one verbal "typo" -- at about 1:58 he says "D" where he really meant "D squared."

Want to crack Ninja Gaiden Sigma for the PS3? Let a hot chick help you! In the regular version of this game, you can unlock the five additional missions that come on the collector's edition. After you've solved the game, go to the mission mode screen and enter: Up, Down, Left, ...more

A potholder loom is a square-shaped loom that allows you to weave thickly woven fabric, but often if you're not careful you can create gaps in between the yarn. But that problem will be completely solved in this video, in which you'll learn how to bypass the gaps. The result w ...more

Learn how to work with i, the imaginary square root of negative 1, in intermediate 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 ...more

In this how to video, you will learn how to find the volume of a sphere and surface area. Let's say you need to find the volume of a sphere with a surface area of 200 cm cubed. You will need to know the formulas for surface area and volume of a sphere. The formula for surface ...more

Exploring the problems associated with blending images that have square and non square pixel formats. Learn about how to fix some of the blunders of pixel aspect ratio mixing and how Photoshop CS4 is trying to help solve some of these pixel nightmares. Creative Cow is a suppo ...more

Check out this beginner tutorial on how to solve a sudoku intermediate number puzzle. Each sudoku has a unique solution that can be reached logically without guessing. Enter digits from 1 to 9 into the blank spaces. Every row must contain one of each digit. So must every colu ...more

This is a basic tutorial on using the Cube Explorer computer software to create your own custom algorithms for different 3x3 Rubik's Cube patterns. And just when you thought the Rubik's Cube couldn't get any more fun! Note: In order to grey-out a cube square and make it unde ...more

Love the taste of fresh ginger, but hate throwing out dry, moldy roots? Solve the problem by storing it in the freezer. Whenever you have a hankering for fresh ginger, just grate the still-frozen root into your favorite recipes. Ginger will lose some of its potency in the free ...more

Niho Ryori demonstrates how to make tonjiru or butajiro, pork and vegetable miso soup. First, cut carrots into quartered slices. Do the same with a giant white radish. Repeat the technique with a potato and add them to water. Scrub a root under running water and peel off the s ...more

This chess tutorial from Grandmaster Alexandra Kosteniuk is a perfect example of Retrograde Analysis. Wikipedia defines Retrograde Analysis as a technique employed by chess problem solvers to determine which moves were played leading up to a given position. While this techniq ...more

Assembling the wooden screen is simple, but be prepared to get grimy while rooting around the salvage yard for matching hinges. 1. Lay the shutters side by side on a worktable, and align their bottoms using a straightedge. (Shutter heights may vary, so be sure to use the bott ...more

As the best-selling toy of all time, the odds of you once playing with a Rubik's Cube are pretty high. And if you're like me, or even the cube's inventor Erno Rubik, your first attempts likely ended in futility. Every twist, every turn, the cube just gets more and more mixed u ...more

Pythagoras was a smart man, so smart that his mathematical theory is named after him and still used today, more than 2,000 years later: the Pythagorean theorem. It implies that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two ...more

In this video the instructor explains the concepts of rational and irrational numbers. Multiplying a number by itself gives the value of its square. If you apply the square root to that squared number it returns to you the original number. This square root is also called a rad ...more

When you need to compute the square root of a number you can do it by breaking it into perfect squares. When you can split the given number into small perfect squares you can cancel out the square root of the expression to the square of the perfect squares. You cannot always w ...more

In this video the instructor shows how to solve a quadratic equation. If you have a quadratic equation with complex fractional terms and you find that a particular term is repeating then equate that term to a new variable and replace the variable in the given equation. Now try ...more

In this video, we learn how to rationalize a denominator that contains a surd. First, you need to rationalize the denominator by removing any square root sign. To do this, you will multiply the fraction but the flip of the denominator over itself, with the square root. Then, y ...more

In this math lesson we will investigate easy Pythagorean Theorem proofs and problems. The Pythagorean Theorem takes place in a right triangle. The longest side in a right triangle is called hypotenuse, and the other two sides are called legs. The hypotenuse opposes the right ...more

If you're looking to solve the parity error with the Void cube, this video is for you. This how-to discusses various algorithms you'll need to know in order to solve the void cube. Don't be square, solve the square. Go!

Sudoku is a one-rule puzzle game that can be either satisfyingly simple or deceptively difficult. Step 1 Cells where an individual number goes are called squares; squares are then sectioned off in groups of nine to create boxes.They create a three-box-by-three-box grid. Step ...more

In this tutorial, we learn how to understand fractional exponents. Starting with an example, let's say you have the square root of four as an equation. The answer to this is two. A fractional exponent is not much different than this problem. Let's say you have 4 to the 1/2 pow ...more

This video demonstrates how to do anti-differentiate functions with radicals in calculus. To simply problems, try to substitute. For example, in the problem, the integral of x times the square root of x plus 2 dx. You can substitute w for everything underneath the radical: i.e ...more

This video shows the method to write a logarithm as a sum or difference of logarithms. The square root of the term given is taken out as half according to the rule. Then the numerator and denominator is divided into product of factors. This is broken into the difference of num ...more

In this video the instructor shows who to simplify radicals. If you have a term inside a square root the first thing you need to do is try to factorize it. First factorize the numerical term. Write down the numerical terms as a product of any perfect squares. Now split the ori ...more

In this video the instructor shows how to factor the difference of squares using a formula. The formula to find the difference of squares can only be applied if you have two perfect squares. The formula is (a * a - b * b) = (a - b) * (a + b). That is the difference of squares ...more

This video shows the method to simplify expressions with different exponents. The video starts with the explanation of 16 raised to the power 1/4. This can be solved by taking the nth or the 4th root of 16 where n stands for the denominator of the fraction. Then the video expl ...more

If you are given an equation of ellipse in the form of a function whose value is a square root, you may need to simplify it to make it look like the equation of an ellipse. Now equate the function to a variable y and perform squaring on both sides to remove the radical. Now si ...more

The video shows how to effectively be aware and get rid of possible webworms or aphids on your mesquites so they won't get damaged later. Here, John White invited Annete Peterson to show how to do so. She starts by informing from what she saw that many mesquites from her neigh ...more

YAYMATH. This video is a demonstration of usage of the distance formula to find the distance between two given (x,y) points. In this video, the tutor guy who is teaching the distance formula to his students takes an example of two (x,y) points such as (5,-1) and (11,7). He the ...more

Looking to find the standard deviation of your set of values? Standard deviation quantifies how diverse the values of your data set are, and is useful in determining how different your numbers are from each other. You Will Need: • Data • A calculator Step 1: Collect your d ...more

In this two part video, you'll learn how to solve the huge puzzle square, the V-Cube 6. In order to figure it out, you'll need to know how to solve the 3X3 4X4 and 5X5 cubes. Also, don't forget to watch the other part of this video. Part 1 of 2 - How to Solve the V-Cube 6. Pa ...more

Learn how to solve r-squared problems. Whether you need help studying for that next big stats text or just a hand finishing your homework, you're sure to be well served by this free video math lesson from Salman Khan, which presents a detailed overview of how to calculate r-sq ...more

A video that demonstrates one of the basic techniques involved in factorizing an equation that contains the difference of two terms which are also perfect squares themselves and are equated to 0. The solution to such type of problems is easy and simply involves factorizing on ...more

The Pythagorean theorem is a simple theorem that states that - for a right angled triangle the square of the length of the hypotenuse is equal to the sum of the squares of the length of the remaining two sides. In this video, a right angled triangle with three sides, namely a ...more

In this tutorial, we learn how to use the distance formula for two points. The distance formula is D= the square root of (X2-X1) squared, plus (Y2 minus Y1) squared. It may look confusing, but it's just a derivation of a theorem. First, find the two points that you have and gr ...more

This video presents a mathematical puzzle which is to be solved by the viewer. The solution is posted in an alternate video, but this video presents the problem of a four digit number which is the square of a smaller number. The first two digits of the square are the same as e ...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

Area of a triangle can be calculated when you have the length of its base and height. In this case the area is 1/2 times the base and its height. If you do not know the height of the triangle but know the lengths of all the sides of the triangle then you can calculate its area ...more

Exponent of a number is nothing but the number multiplied to it self the exponent number of times. So five squared it equal to five multiplied to it self. Now when an exponential number is divided with another such number the result is the number raised to the different of the ...more

This video explains how to solve several problems associated with gardening in arid environments. Rhubarb is a plant that is commonly grown in colder environments. In arid environments, its very important to not over water it, so keep it in a sandy soil with lots of organic co ...more

In this video tutorial, viewers learn how to simplify expressions involving numeric radicals. This can be very frustrating to work with if you have not memorized the tables of square, cubes and fourths. If you are taking the square root of a number that is not a perfect square ...more

Jacky Liao and Tony Liao describe the main attributes of Sudoku and provide tips on how to solve the puzzle. Sudoku is a popular puzzle just like crossword. It is a puzzle of a 9X9 square sub-divided into 3X3 squares. You have to fill each column and row with digits 1 through ...more

In this video the instructor shows how to factor a general quadratic polynomial. Here the first step is to identify the coefficient of the squared term. Write the reciprocal of the numerical coefficient of the squared term out side and write two separate parenthesis which are ...more

In this video the instructor shows how to find out the fourth roots of a number. The properties of fourth root says that for any positive number of a, its fourth roots are real. And for any negative value a, its fourth roots are not real. So split the number inside the fourth ...more

The video shows us how to find the area of parallelogram using geometry. Here in this video it is done by using an example where the parallelogram is given ABCD. The area of the parallelogram is base times height (bh). Here the base is given as 15 but the height is not known b ...more

You Tube User robichaudd teaches you how to simplify a complex fraction with 3 fractions top and bottom. Your result should be 1 fraction over 1 fraction. To do this you must find the L.C.D. at the top, which x cubed. That is the largest variable there. Thus, the L.C.D. at the ...more

Algebra – The Distance Formula. This video describes how to find the distance between 2 points of a graph in a step by step method. Made by Ya Math, the instructor assists the class in finding the distance between (6,8) and (3,4) by showing us the equation d=v((x_1-x_2 )^2+(y_ ...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

This is a video tutorial on how to solve a 2x2 Rubik's cube using the Ortega method. The tip from the author is to go for the color whose maximum squares are already together. It is also pointed out that not only does the Ortega method involve three steps, which is time consum ...more

Did you know that you could make an ISO or CSO image of your PSP UMD and then run it off your memory stick. This solves space issues and the games even run faster! What you need to do is first go to the root of your memory stick and make a folder called 'ISO". Put the ISO that ...more

Doug Simms online shows how to simplify the radical in a mathematical equation. If you need to brush up on your learning this video can help. Start by finding what is the largest square of the number in your radical. If that number can be solved then solve it, put the answer o ...more