Question

If n^-2 = 1/16, then n could be which of the following?
-8
-4
-1/4
1/4
4

Answer 1

n^-2=1/n^2, what value of n makes n^2=16?

Answer 2

8?

Answer 3

No, that would be If it was 2(8). ^2 means squared, so you are multiplying a number by its self.

Answer 4

-4 or 4

Answer 5

Correct :)

Answer 6

so both are right

Answer 7

Yes (-4)^-2 and (4)^-2 both equal 1/16!