问题
填空题
分解因式:x3-xy2-x+y=______.
答案
x3-xy2-x+y,
=x(x2-y2)-(x-y),
=x(x-y)(x+y)-(x-y),
=(x-y)(x2+xy-1).
故答案为:(x-y)(x2+xy-1).
分解因式:x3-xy2-x+y=______.
x3-xy2-x+y,
=x(x2-y2)-(x-y),
=x(x-y)(x+y)-(x-y),
=(x-y)(x2+xy-1).
故答案为:(x-y)(x2+xy-1).