Question

1)2x+ac+cx+2a 2)2x+7y+14+xy 3)ay-12bx+3ax-4by

Answer 1

2x+ac+cx+2a=x(2+c)+a(2+c)=(2+c)(a+x)

2x+7y+14+xy=x(2+y)+7(2+y)=(x+7)(2+y)

ay-12bx+3ax-4by=y(a-4b)+3x(a-4b)=(y+3x)(a-4b)