Question

9 и 10 помогите!!!!!!​

Answer 1

Ответ:

9:А)

${ - 3a}^{3} {b}^{2} {a}^{2} {b}^{7} = { - 15a}^{3 + 2} {b}^{2} \times {b}^{7} = { - 15a}^{3 + 2} {b}^{2 + 7} = { - 15a}^{5} {b}^{9}$

Б)

${ - 2}^{4} \times ( {x}^{2} ) ^{4} \times {y}^{4} = - 16 \times {x}^{8} \times {y}^{4} = - 16 {x}^{8} {y}^{4}$