搜搜做题作业网(x+y)*x^2/x^2-y^2+y^2/x-y-(2x^2y-2xy^2)/(x^2-2xy+y^2)
来源：学生作业帮 编辑：搜搜做题作业网作业帮 分类：数学作业 时间：2024/07/05 22:33:49
(x+y)*x^2/x^2-y^2+y^2/x-y-(2x^2y-2xy^2)/(x^2-2xy+y^2)
（1）(x+y)·x^2-y^2分之x^2 +x-y分之y^2 -（2x^2y-2xy^2)÷(x^2-2xy+y^2）
=(x+y)*x²/(x+y)(x-y)+y²/(x-y)-2xy(x-y)/(x-y)²
=x²/(x-y)+y²/(x-y)-2xy/(x-y)
=(x²+y²-2xy)/(x-y)
=(x-y)²/(x-y)
=x-y
=(x+y)*x²/(x+y)(x-y)+y²/(x-y)-2xy(x-y)/(x-y)²
=x²/(x-y)+y²/(x-y)-2xy/(x-y)
=(x²+y²-2xy)/(x-y)
=(x-y)²/(x-y)
=x-y
因式分解：x×x-xy-2y×y-x-y
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作乘法:(x+y)(x^2-xy+y^2)；(x-y)(x^2+xy+y^2)
x根号x+x根号y/xy-y^2)-（x+根号xy+y/x根号x-y根号）y
[x(x^2y^2-xy)-y(x^2-x^3y)]/3x^2y
2xy/(x+y)(x+y)与x/(x+y)(x-y)怎么通分
(x+y)(x-y)-(2xy+3y)平方
(x+y-2xy)(x+y-2)+(1-xy)²
(x^2-xy)y÷y-x/xy怎么做?
因式分解xy+y平方+x-y-2
x^2y+4xy+4y