Question

Which of the following are square roots of the number below? Check all that apply. 400

Answer 1

C, D, E, F

Explanation:

It can also be written as:

Sqrt(a) = a^½

So, for our case:

Sqrt(400)=400^½ or -400^½ or -20 or 20

Each of these numbers multiplied by itself will give you 400.

Answers: C, D, E, F

Answer 2

C. -20 and F. 20

Explanation:

-20 x -20 = 400

20 x 20 = 400