Definition of square root
Understand the Problem
The question is asking for the definition of a square root, which is a mathematical concept where a number is expressed as the value that, when multiplied by itself, gives the original number.
Answer
A value that, when multiplied by itself, gives the original number.
The square root of a number is a value that, when multiplied by itself, gives the original number.
Answer for screen readers
The square root of a number is a value that, when multiplied by itself, gives the original number.
More Information
Every positive number has two square roots: one positive, which is the principal square root, and one negative. However, when people generally refer to the square root, they mean the positive square root unless stated otherwise.
Tips
Confusing the principal square root with the negative square root can lead to errors. Always check which one is needed for your context.
Sources
- Square root - Wikipedia - en.wikipedia.org
- Square Root (Illustrated Mathematics Dictionary) - Math is Fun - mathsisfun.com
- Square Root Definition & Meaning - Merriam-Webster - merriam-webster.com
