(7m-49)/(m^2+7m) : (m-7)/(49+14m+m^2)
(7(m-7))/(m*(m+7)) * (49+14m+m^2)/(m-7)
7/(m+(m+7)) * (7+m)^2
7/m * (7+m)
(49+7m)/m
Объяснение:
(7m-49)/(m^2+7m) : (m-7)/(49+14m+m^2)
(7(m-7))/(m*(m+7)) * (49+14m+m^2)/(m-7)
7/(m+(m+7)) * (7+m)^2
7/m * (7+m)
(49+7m)/m
Объяснение: