Question

What is the solution to this equation?

Answer 1

n=±6

Explanation:

-1/2 n²+18=0

-1/2 n² =-18

-n²=-36

n²=36

n=√36

n=±6

Answer 2

-0.5 n^2=-18
n^2= 36
n= sqrt (36)=6 or -6

Hope this can help.