提取公因式法1.(x-2)^-x+22.x^2y(x-y)-xy^2(y-x)_数学解答

提取公因式法
1.(x-2)^-x+2
2.x^2y(x-y)-xy^2(y-x)

人气：277 ℃　时间：2020-05-27 15:56:52

解答

1.(x-2)²-x+2
=（x-2)²-(x-2)
=(x-2)(x-2-1)
=(x-2)(x-3)
2.x²y(x-y)-xy²(y-x)
=x²y(x-y)+xy²(x-y)
=xy(x-y)(x+y)