solve(4*x^2=8) — step-by-step solution

Let's solve in

ℝ

4 x^{2} = 8

ⓘ Both sides are divided by

4

x^{2} = 2

The two numbers whose square is

2

are

- \sqrt{2}

and

\sqrt{2}

▶Solutions obtained:

x = {- \sqrt{2}, \sqrt{2}}

The numeric value of:

x = {- \sqrt{2}, \sqrt{2}}

is:

▷

x = {\approx -1.4142, \approx 1.4142}