Question

Which of the following are solutions to the equation below?

Check all that apply.
9x – 64 = 0
A. 8
B.
_ c.
C D.
3
F.
ო/დ
I
დო
3
J E. -8
დო
3
8

Answer 1

C -8/3

F 8/3

Explanation:

9x² - 64 = 0

==> 9x² = 64

==> x² = 64/9

x = ±√(64/9) = ±√64/√9 = ±8/3