Question

what are the square roots of 625?

Explanation:

Step1: Find positive square root

Calculate $x$ where $x^2=625$. $25^2=25\times25=625$, so positive root is 25.

Step2: Find negative square root

A negative number squared is positive. $(-25)^2=(-25)\times(-25)=625$, so negative root is -25.

Answer:

25 and -25