Question

(x-y)(x-y+1)怎么化简

Answer 1

应该已经最简了，无法再化简了。

Answer 2

（x-y）^2+x-y

Answer 3

（x-y)^+(x-y)=x^-2xy+y^+x-y

Answer 4

(x-y)(x-y+1)
=x²-xy+x-xy+y²-y
=x²+y²-2xy+x-y

Answer 5

x2+2xy+y2+x
-y