Question

ПОЖАЛУЙСТА ПОМОГИТЕ МНЕ!!! ​

Answer 1

Ответ:

1)

$( {5x}^{2} + 6x - 3) - ( {2x}^{2} - 3 x - 4) = {5x}^{2} + 6x - 3 - {2x}^{2} + 3 x + 4 = {3x}^{2} + 9x + 1$

2)

1.

$\frac{ {4}^{6} \times {2}^{9}}{ {32}^{4} } = \frac{4096 \ \times 512}{1 048 576} = \frac{4096}{2048} = 2$

2.

${(2 \frac{2}{3} )}^{5} \times {(\frac{3}{8})^{6} } = { (\frac{8}{3})}^{5} \times {(\frac{3}{8})^{6} } = \frac{ {8}^{5} }{ {3}^{5} } \times \frac{ {3}^{6} }{ {8}^{6} } = \frac{ {3}^{6} \times {8}^{5} }{ {3}^{5} \times {8}^{6} } = \frac{ {3} \times 1}{8 \times 1} = \frac{3}{8} = 0.375$