Пошаговое объяснение:
1 ) 3a * (- 8) = - 24 a
2) -5 * ( 3/10 b) = - 3/ 2 b
3) - 7c * (- 3 d ) = 21 cd
4) - 8 c * ( - 3/4 d) = 2c * 3d=6 cd
5) 10 m * ( -0,5 n ) = - 5 mn
6) - 9m * ( - 2/3n) = 6 mn
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Пошаговое объяснение:
1 ) 3a * (- 8) = - 24 a
2) -5 * ( 3/10 b) = - 3/ 2 b
3) - 7c * (- 3 d ) = 21 cd
4) - 8 c * ( - 3/4 d) = 2c * 3d=6 cd
5) 10 m * ( -0,5 n ) = - 5 mn
6) - 9m * ( - 2/3n) = 6 mn