3(x-y)^2-7(x-y)+8(y-x)^2+6(y-x)合并同类项.

网友回答

(11(x-y)-13)(x-y)
======以下答案可供参考======
供参考答案1:
=3(x-y)^2-7(x-y)+8(x-y)^2-6(x-y)
=11(x-y)^2 -13(x-y)
供参考答案2:
先分解，再合并