solve x^2=4 on [0,10] — step-by-step solution

Let's solve in

ℝ

x^{2} = 4

The two numbers whose square is

4

are

-2

and

2

Solutions found:

x = {-2, 2}

[0, 10]

, we keep the solutions lying in the interval:

2

▶Solution:

x = 2