Question

(2x-3)*(3x+6)*(2.8-0.4x)=0

Answer 1

$(2x - 3) \times (3x + 6) \times ( \frac{14}{5} - \frac{2}{5} x) = 0 \\ \\ 2x - 3 = 0 \\ 3x + 6 = 0 \\ \frac{14}{5} - \frac{2}{5} x = 0 \\ \\ x = \frac{3}{2} \\ x = - 2 \\ x = 7$

Answer 2

Решение на фото............