Question

what are the solutions of the equation 2x ^ 2 equals 18 use a group of related function whose group answers the question

Answer 1

The given expression is :

`2x^2=18`

Simplify the equation for x :

`2x^2=18`

Divide both side by 2 :

`\begin{gathered} (2x^2)/(2)=(18)/(2) \\ x^2=9 \end{gathered}`

taking square root on both side :

`\begin{gathered} x^2=9 \\ \sqrt[]{x^2}=\sqrt[]{9} \\ x=\pm3 \end{gathered}`

Answer :