Question

$24ab + 32a - 3b - 4 \: \: \: a = 0.3 \: \: b = - 1 \times \frac{2}{3}$

Answer 1

Здравствуй!!

$24 \times 0.3 \times ( - \frac{2}{3} ) + 32 \times 0.3 - 3 \times ( - \frac{2}{3} ) - 4 = \\ \\ = -4.8 + 9.6 + 2 - 4 = \\ = 11.6 - 8.8 = \\ = 2.8$

Ответ: 2.8

Удачи в учёбе!!