Question

Solve. 2x2 = 8

Answer 1

\[2x^{2}=8\]
divide both sides by 2...

\[\frac{2x^{2}}{2}=\frac{8}{2}\]

\[x^{2}=4\]

taking sqrt on both sides...
\[\sqrt{x^{2}}=\sqrt{4}\]
\[x=\pm2\]