Question

5. Решите уравнение..
а. (2х + 8)2 = 0.
б. х2 – 4х = 0

Answer 1

Ответ:

$4x + 16 = 0 \\ 4x = - 16 \\ x = - 16 \div 4 \\ x = - 4 \\ \\ - 2x = 0 \\ x = 0 \div ( - 2) \\ x = 0$