Question

which value of a solves the equation


A.4

B.–32

C.–16

D.8

Answer 1

Try replacing a with any one of these choices, and see which one works. For example, if we try the first one, 4, then we get
\[\large a^{-2}=\frac1{64}\]\[\large (4)^{-2} = \frac1{64}\]\[\large \frac1{16}=\frac1{64}\]

Which is not true, so A. is not the answer. Try the others. :)

Answer 2

ok but how do you get the fraction

Answer 3

What do you mean by that?

Answer 4

nm it is d.8

Answer 5

bye