Question

Разложите множитили 2x(x-1)-3(x-1) a) ab+ac+4b+4c

Answer 1

2x(x-1) - 3(x-1) = (x-1)(2x-3)
ab + ac + 4b + 4c = a(b+c) + 4(b+c) = (b+c)(a+4)