Question

Find the solutions to x^2 = 8

Answer 1

Answer:

x=2√2 is the answer

Step-by-step explanation:

x²=8

TAKING SQUARE ROOT ON BOTH SIDES

√x²=√8

x=√2×2×2

x=√2²×√2

x=2√2

i hope this will help you

Answer 2

Answer:

The value of x is -2.828 or 2.828

Step-by-step explanation:

In order to eliminate of square of x, you have to square root both sides :

${x}^{2} = 8$

$\sqrt{ {x}^{2} } = ± \sqrt{8}$

$x = \sqrt{8} \\ x = 2 \sqrt{2} \: or \: 2.828$

$x = - \sqrt{8} \\ x = - 2 \sqrt{2} \: or \: - 2.828$