x^2-y^2+x+5y-6因式分解
问题描述:
x^2-y^2+x+5y-6因式分解
答
原式=(x+y)(x-y)+3(x+y)-2x-2y-6
=(x+y)(x-y+3)-2(x-y+3)
=(x-y+3)(x+y-2)