Question

Solve for x.

5x^2 − 80 = 0

{16}
{4}
{4, −4}
{16, −16}

Answer 1

so what is the first thing we can do to isolate our x?

Answer 2

\[5x^2=80\]\[x^2=\frac{80}{5}\]\[x=\sqrt{\frac{80}{5}}=?\]

Answer 3

solve it further :)