Question

`2x^2 = 18`

Answer 1

2x²=18

x²=9

x²=3²

x=3

Answer 2

\(2x^2=18\)

\(x^2=18:2\)

\(x^2=9\)

\(x^2=3^2\)

\(x=3\)

Answer 3

2x2=18x2=18:2x2=9x2=32x=3

Answer 4

\(=>x^2=9< =>\left[{}\begin{matrix}x=3\\x=-3\end{matrix}\right.\)