Question

Решите уравнение x^2 = 8

Answer 1

$x^{2} =8$
$X _{1} = sqrt{8}= sqrt{4*2} =2 sqrt{2}$
$X _{2}=- sqrt{8} =- sqrt{4*2}= -2 sqrt{2}$

Answer 2

x²= 8
х=√8
х₁=√8=2√2
х₂=-2√2