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Square root

en.wikipedia.org/wiki/Square_root

In mathematics, a square root of a number a is a number y such that y<sup>2</sup> = a; in other words, a number y whose square is a. For example, 4 and −4 are square ...

Square Root Calculator - Math.com

www.math.com/students/calculators/source/square-root.htm

The Square Root Calculator will find the square root of the number you enter. ... Related Topic How to calculate square roots without a calculator ...

Squares and Square Roots - Math is Fun

www.mathsisfun.com/square-root.html

"Squared" is often written as a little 2 like this: square root of 9 is 3. This says "4 Squared equals 16" (the little 2 says the number appears twice in multiplying) ...

Square Root -- from Wolfram MathWorld

mathworld.wolfram.com/SquareRoot.html

In common usage, unless otherwise specified, "the" square root is generally taken to mean the principal square root. The principal square root function sqrt(x)  ...

Square Roots - BrainPOP

www.brainpop.com/math/numbersandoperations/squareroots/

Ready to get to the root of square roots? In this BrainPOP movie, Tim and Moby help you figure out what square roots are all about! You'll find out the exact ...

Square Root Calculator - Calculator Soup

www.calculatorsoup.com/calculators/algebra/squareroots.php

Square root calculator and perfect square calculator. Finds the square root, or the two square roots of positive real numbers. Calculate the positive principal root ...

Table of Squares and Square Roots - Fact Monster

www.factmonster.com/ipka/A0875883.html

For instance, if you want to find the square root of 2000, look in the middle column until you find the number that is closest to 2000. The number in the middle ...

www.ask.com/youtube?q=Square Root&v=nUyLnjgGumg
Mar 24, 2015 ... Finding the square root is easy for any perfect square under 100! You'll be able to calculate squares faster than ever and amaze everyone with ...

Simplify a Term Under a Radical Sign - WebMath

www.webmath.com/simpsqrt.html

This page will help you to simplify an expression under a radical sign (square root sign). Type your expression into the box under the radical sign, then click ...

Mathwords: Square Root

www.mathwords.com/s/square_root.htm

Square Root. A nonnegative number that must be multiplied times itself to equal a given number. The square root of x is written or x<sup>½</sup>. For example, since 3<sup>2</sup> = 9.

Answer
The square root of a number, x, is the number that equals x when multiplied by itself.
The square root of 4 is 2, since 2 multiplied by itself equals 4.
More Info

Understanding square roots | Square roots | Khan Academy

www.khanacademy.org

Understanding Square Roots. ... Square roots of perfect squares · Square roots of perfect squares · Approximating square roots to hundredths · Approximating ...

Intro to square roots | Numbers and operations | Khan Academy

www.khanacademy.org

Apr 29, 2015 ... Learn about the square root symbol (the principal root) and what it means to find a square root. Also learn how to solve simple square root ...

Square Roots: Introduction and Simplification - Purplemath

www.purplemath.com

Introduces the square root. Covers basic terminology and demonstrates how to simplify terms containing square roots.