Question

select all tht apply
If n-^2 = 1/16, then n could be which of the following?

-8
-4
-1/4
1/4
4

Answer 1

$n^{-2}= \cfrac{1}{16} \\ \\ \cfrac{1}{n^2} = \cfrac{1}{16}; \ \ \ n \neq 0 \\ \\ n^2=16 \\ \\ n=б \sqrt{16} \\ \\n=б4$