Question

How do I solve this using the(i=-1) or i=square root -1
-2(x+1)^2=72

Answer 1

divide by\(-2\) then take the square root

Answer 2

\[\frac{72}{-2}=-36\] and
\[\sqrt{-36}=\sqrt{36\times (-1)}=\sqrt{36}\sqrt{-1}=6i\]

Answer 3

Thank you Satellite73!

Answer 4

yw
don't forget to subtract \(1\) to get your final answer