Question

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

4x^2 = 81

A. 2.25, –2.25

B. 4.5, –4.5

C. 9, –9

D. 20.25, –20.25

Answer 1

First, divide by 4. @Abbster2015backup

Answer 2

What do I divide by 4? @xGuardians