Question

Решите уравнение
(6x-12)^2-(5x+3)=0

Answer 1

Ответ:

$\frac{6x - 12}{2} - 5x - 3 = 0 \\ \frac{2(3x - 6)}{2} - 5x - 3 = 0 \\ 3x - 6 - 5x - 3 = 0 \\ - 2x - 9 = 0 \\ - 2x = 9 \\ x = - \frac {9}{ 2} \\ x = - 4.5$