Question

(x-radical din 2) la puterea 2 = 8
x=?

Answer 1

Sper ca te am ajutat!!!!

Answer 2

(x-√2)²=8

x-√2=±√8

x-√2=±2√2

=> x-√2=-2√2

x=-√2

x-√2=2√2

x=3√2

S={-√2;3√2}