因式分解：x^2-6x+y^2+6y-2xy+5

分类: 作业答案 • 2021-12-20 09:04:51

问题描述：

答

x^2-6x+y^2+6y-2xy+5
=（x^2-2xy+y^2）+（6y-6x）+5
=(x-y)^2-6(x-y)+5
=(x-y-5)(x-y-1)

答

原式=（x-y-1）*(x-y-5)

答

x^2-6x+y^2+6y-2xy+5
=(x-y)^2-6(x-y)+5
=(x-y-5)(x-y-1)

答

x^2-6x+y^2+6y-2xy+5
=x^2-2xy+y^2-6x+6y+5
=(x-y)^2-6(x-y)+5
=(x-y-5)(x-y-1)