把下列各式分解因式;(1)x(a+b)+Y(a+b) (2)3a(x-y)-(x-y) (3)6(p+q)2+12(q+p)
问题描述:
把下列各式分解因式;(1)x(a+b)+Y(a+b) (2)3a(x-y)-(x-y) (3)6(p+q)2+12(q+p)
(4)a(m-2)+b(2-M)
(5)2(y-x)2+3(x-y)
(6)mn(m-n-m(n-m)2
答
(1)x(a+b)+Y(a+b)=(a+b)(x+y) (2)3a(x-y)-(x-y)=(x-y)(3a-1)(3)6(p+q)²+12(q+p)=6(p+q)(p+q+2)(4)a(m-2)+b(2-M)=a(m-2)-b(m-2)=(m-2)(a-b) (5)2(y-x)²+3(x-y)=2(x-y)²+3(x-y)=(x-y)(...