Question

Спостити вираз -3a(-5a-2)-6a

Answer 1

Ответ:

$- 3a( - 5a - 2) - 6a \\ - 3a \times ( - 5a) - 3a \times ( - 2) - 6a \\ 15 {a}^{2} + 6a - 6a \\ 15 {a}^{2}$