Question

СРОЧНО ДАМ 40 БАЛЛОВ​

Answer 1

1)

$- 3 {a}^{2} {b}^{4} \times 3 {a}^{2} {b}^{5} = - 9 {a}^{2 + 2} {b}^{4 + 5} = - 9 {a}^{4} {b}^{9}$

2)

${( - 4 {a}^{2} {b}^{6} )}^{3} = {( - 4)}^{3} {a}^{2 \times 3} {b}^{6 \times 3} = - 64 {a}^{6} {b}^{18}$

3)

$\frac{ {4}^{6} \times {2}^{9} }{ {32}^{4} } = \frac{ { ({2}^{2} )}^{6} \times {2}^{9} }{ { {(2}^{5} )}^{4} } = \frac{ {2}^{12} \times {2}^{9} }{ {2}^{20} } = \frac{ {2}^{21} }{ {2}^{20} } = {2}^{21 - 20} = {2}^{1} = 2$

4)

${(2 \frac{2}{3} )}^{5} \times ( { \frac{3}{8}) }^{6} = {( \frac{8}{3} )}^{5} \times {( \frac{3}{8} )}^{6} = {( \frac{8}{3} )}^{5} \times {( \frac{8}{3} )}^{ - 6} = {( \frac{8}{3} )}^{5 + ( - 6)} = {( \frac{8}{3}) }^{ - 1} = \frac{3}{8}$