Question

Confirm an answer please.

Answer 1

\[-2(x-1)^{2}=36\]
then x=\[4i \sqrt{2}\]

Answer 2

\[-2(x^2-2x+1)=36\]
\[x^2-2x+1=-18\]
\[x^2-2x+19\]
\[x=\frac{ 2\pm \sqrt{4-76} }{ 2 }\]
\[x=\frac{ 2\pm \sqrt{-72} }{ 2 }\]
\[x=\frac{ 2\pm i\sqrt{72} }{ 2 }\]
\[x=\frac{ 2\pm 6i\sqrt{2} }{ 2 }\]
\[x=1\pm 3i\sqrt{2}\]

Answer 3

3rd line meant to be equal to zero.

Answer 4

thank you.