9(5−8m)
=(9)(5+−8m)
=(9)(5)+(9)(−8m)
=45−72m
=−72m+45
(6m−4)(8)
=(6m+−4)(8)
=(6m)(8)+(−4)(8)
=48m−32
Пошаговое объяснение:
А) 9×5-9×8m=45-72m
Б) 8×6m-8×4=48m-32
