1. (b-c) (a-1)
2. (3c-y) (2x-7y)
Объяснение:
1) a(b-c)-(b-c)=(b-c)(a-1)
2) 2x(3c-y)+7y(y-3c)= 2x(3c-y)-7y(3c-y)= (3c-y)(2x-7y)
1. (b-c) (a-1)
2. (3c-y) (2x-7y)
Объяснение:
1) a(b-c)-(b-c)=(b-c)(a-1)
2) 2x(3c-y)+7y(y-3c)= 2x(3c-y)-7y(3c-y)= (3c-y)(2x-7y)