Разложите на множители : а.xz+xy+2z+2y = б.2ab-2ac+3b-3c = в.5ax+10ay+bx+2by = г.3ac+6bc+7ax+14 bx = д.2ax+2xy-an-yn = е.x+xz+ax+az

A) xz+xy+2z+2y=x(z+y)+2(z+y)=(z+y)(x+2)
b) ...=2a(b-c)+3(b-c)=(b-c)(2a+3)
c)...=5a(x+2y)+b(x+2y)=(x+2y)(5a+b)
d)...=3c(a+2b)+7x(a+2b)=(a+2b)(3c+7x)
e)...=2x(a+y)-n(a+y)=(2x-n)(a+y)
f)...=x(x+z)+a(x+z)=(x+z)(x+a)

А.xz+xy+2z+2y = ...x(z+y)+2(z+g)
Б.2ab-2ac+3b-3c = ...2a(b-c)+3(b-c)
В.5ax+10ay+bx+2by = ...5a(x+2y)+b(x+2y)
Г.3ac+6bc+7ax+14 bx = ...3c(a+2b)+7x(a+2b)
Д.2ax+2xy-an-yn = ...2x(a+y)-n(a+y)