[(x^2-2xy+y^2)-x(3x-2y)+(x-y)×(x+y)]÷2x等于多少

[(x^2-2xy+y^2)-x(3x-2y)+(x-y)×(x+y)]÷2x等于多少
2025-03-05 04:38:53
推荐回答(1个)
回答1:

=[(x^2-2xy+y^2)-3x^2+2xy+x^2-y^2]÷2x
=(x^2-3x^2+x^2)÷2x
=-x^2÷2x
=-x÷2