Question

Solve. 2x2 = 8

x = 2

x = 2 and x = –2

x = –2 and x = 4

x = 4

Answer 1

Divide both sides by 2 first.

Answer 2

which is 2 and 4?

Answer 3

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

Answer 4

\[x^2=4\]

Answer 5

\[x=\pm 2\]