Question

(x-2)²=16 Помогите пж. Не поняла тему

Answer 1

${x}^{2} - 4x + 4 = 16 \\ {x}^{2} - 4x - 12 = 0 \\ d = {4}^{2} - 4 \times (- 12) = 64 \\ x1 = 6 \\ x2 = - 2$