Question

Solve the equation. If necessary, round your answer to the nearest tenth.

x2 = 256

A.
128

B.
16

C.
16, –16

D.
128, –128

Answer 1

there was to solutions
x=16
x=-16

Answer 2

Answer:

16, -16

Step-by-step explanation:

x^2 = 256

x = $\sqrt{256}$

x = $\sqrt{4 * 64}$

x = $\sqrt{4}$ * $\sqrt{64}$

x = 2 * 8

x = 16

Hopes this helps >.<