Question

Упростите выражения
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Answer 1

Ответ:

2)

$a {}^{30}$

4)

$b {}^{9}$

Пошаговое объяснение:

2)

$a {}^{21} \times (a {}^{4} ) {}^{3} \div (a {}^{3} ) {}^{10} = \\ = a {}^{21} \times a {}^{12} \div a {}^{3} = \\ = a {}^{21 + 12 - 3} = \\ = a {}^{30}$

4)

$(b {}^{6} ) {}^{4} \div (b {}^{7} ) {}^{3} \times (b {}^{2} ) {}^{3} = \\ = b {}^{24} \div b {}^{21} \times b {}^{6} = \\ = b {}^{24 - 21 + 6} = \\ = b {}^{9}$