## Square root - Wikipedia

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 ...

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.

## 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 roots and real numbers (Pre-Algebra, Right triangles and ...

www.mathplanet.com/education/pre-algebra/right-triangles-and-algebra/square-roots-and-real-numbers

All positive real numbers has two square roots, one positive square root and one negative square root. The positive square root is sometimes referred to as the ...

## Table of Squares and Square Roots - Fact Monster

www.factmonster.com/ipka/A0875883.html

Use this table to find the squares and square roots of numbers from 1 to 100. ... you will have to use a calculator (44.721 is the more exact square root of 2,000).

## What is the opposite of a square root? | Reference.com

www.reference.com/math/opposite-square-root-c53e9600a72811d3

The opposite of finding the square root of a number is squaring the number. Squaring a number means multiplying the figure by itself. For example, the square ...

## Numbers - Square Roots - First Glance - Math.com

www.math.com/school/subject1/lessons/S1U1L9GL.html

Finding the square root of a number is the inverse operation of squaring that number. Remember, the square of a number is that number times itself. The perfect ...

## Numbers - Square Roots - In Depth - Math.com

www.math.com/school/subject1/lessons/S1U1L9DP.html

Many mathematical operations have an inverse, or opposite, operation. Subtraction is the opposite of addition, division is the inverse of multiplication, and so on.

Popular Q&A
Q: Why can't the square root of 4 be -2 instead of 2, if -2 time...
A: Both 2 and –2 are square roots of 4. I presume the question is about the notation a . Part of it is convenience. It's convenient to have a notation to dist... Read More »
Source: www.quora.com
Q: Algorithm - Why do we check up to the square root of a prime ...
A: To test whether a number is prime or not, why do we have to test ... If a number n is not a prime, it can be factored into two factors a and b : n = a*b. Read More »
Source: stackoverflow.com
Q: What is the square root of 1? - Quora
A: (Only) 1 is the square root of 1 (written 1 ). Either 1 or −1 is a square root of 1 ( written ± 1 ), since either is a solution of x 2 = 1 , but that was not th... Read More »
Source: www.quora.com
Q: What is the difference between square root and under root? - Quor...
A: Under root:- It can be used for any root. A square root or cube root or nth root. 25 under root to the power 2 is basically square root of 25, which is 5. 729 ... Read More »
Source: www.quora.com
Q: Is the square root of a positive number positive? - Quora
A: Yes. If you say “the square root” or write x , you're conventionally referring to the principal square root, which for a positive radicand x is the positiv... Read More »
Source: www.quora.com