# Question #204c4

Oct 18, 2017

see below

#### Explanation:

A square root of a number is a number that is multiplied by itself to give the original number.

so$\sqrt{49} = 7$

because $7 \times 7 = 49$

since $- 7 \times - 7 = 49$ as well $- 7$ is also a square root of $49$