Question

срочно очень срочно!!!!!! дам 30​

Answer 1

Ответ:

1)

$1620a {}^{10}$

2)

$- 12b {}^{26}$

3)

$- m {}^{33} n {}^{13}$

4)

$0.048x {}^{23} y {}^{30}$

5)

$- 2a {}^{15} b {}^{12}$

6)

$\frac{2}{27} x {}^{12} y {}^{9}$

Объяснение:

1)

$20a {}^{8} \times (9a) {}^{2} = \\ = 20 \times 81 \times a {}^{8} \times a {}^{2} = \\ = 1620a {}^{10}$

2)

$( - b {}^{5} ) {}^{4} \times 12b {}^{6} = \\ = - b {}^{20} \times 12b {}^{6} = \\ = - 12b {}^{26}$

3)

$(3m {}^{6} n {}^{3} ) {}^{4} \times ( - \frac{1}{81} m {}^{9} n) = \\ = 81m {}^{24} n {}^{12} \times ( - \frac{1}{81} m {}^{9} n) = \\ = - m {}^{33} n {}^{13}$

4)

$(0.2x {}^{7} y {}^{8} ) {}^{3} \times 6x {}^{2} y {}^{2} = \\ = 0.008 \times 6 \times x {}^{21} \times y {}^{28 } \times x {}^{2} \times y {}^{2} = \\ = 0.048x {}^{23} y {}^{30}$

5)

$( - \frac{1}{2} ab {}^{4} ) {}^{3} \times (4a {}^{6} ) {}^{2} = \\ = - \frac{1}{8} a {}^{3} b {}^{12} \times 16a {}^{12} = \\ = - 2a {}^{15} b {}^{12}$

6)

$( - \frac{2}{3} x {}^{2} y) {}^{5} \times ( - \frac{3}{4} xy {}^{2} ) {}^{2} = \\ = - \frac{2 {}^{5} }{3 {}^{5} } \times ( - \frac{3 {}^{2} }{4 {}^{2} } ) \times x {}^{10} \times y {}^{5} \times x {}^{2} \times y {}^{4} = \\ = \frac{2}{27} x {}^{12} y {}^{9}$