Question

Rezolvati ecuatia: (x-2)²=324

Answer 1

(x-2)²=324
(x-2)²=18²
x-2=18
x=20

Answer 2

                     
$(x-2)^{2}324 \\ x-2= \pm \sqrt{324} \\ x-2 = \pm 18 \\ x_1 = 18 + 2 = \boxed{20} \\ x_2 = -18 + 2 = \boxed{-16}$