solve 2x^2-8=0 — step-by-step solution

Let's solve in

ℝ

2 x^{2} - 8 = 0

ⓘ Both sides are divided by

2

x^{2} = 4

The two numbers whose square is

4

are

-2

and

2

▶Solutions obtained:

x = {-2, 2}