✓(2x-2).(3x+5)=
(5a-6).(9+3a)=
(21m+3).(2m-5)=
(3b-9).(5b+7)=
(11a+5).(4a-5)=
(8n+11).(10n-2)=
(30e-12).(4e-6)=