因式分解 x²+xy-6y²-6x+2y+8,
问题描述:
因式分解 x²+xy-6y²-6x+2y+8,
答
x²+xy-6y²-6x+2y+8
=(x+3y)(x-2y)-2(3x-y)+8
=(x+3y-4)(x-2y-2)