Question

допоможіть
даю 20 балів

Answer 1

Ответ:

а)

$2a {}^{6} b {}^{8}$

б)

$c {}^{5} d {}^{5}$

в)

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

Объяснение:

а)

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

б)

$2 \frac{1}{4} c {}^{3} d \times (( - \frac{2}{3} )cd {}^{2} ) {}^{2} = \\ = \frac{9}{4} c {}^{3} d \times \frac{4}{9} c {}^{2} d {}^{4} = \\ = c {}^{5} d {}^{5}$

в)

$( - 10ab {}^{3} ) {}^{3} \times ( - 0.1a {}^{3} b {}^{2} ) {}^{3} = \\ = a {}^{3} b {}^{9} \times a {}^{9} b {}^{6} = \\ = a {}^{12} b {}^{15}$