您好：x(x-y)^2-y(y-x)^2 x^2/4+xy+y^2 利用平方差公式做?
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您好：x(x-y)^2-y(y-x)^2x^2/4+xy+y^2利用平方差公式做?您好：x(x-y)^2-y(y-x)^2x^2/4+xy+y^2利用平方差公式做?您好：x(x-y)^2-y(y-x)
您好：x(x-y)^2-y(y-x)^2 x^2/4+xy+y^2 利用平方差公式做?
您好：x(x-y)^2-y(y-x)^2 x^2/4+xy+y^2 利用平方差公式做?
您好：x(x-y)^2-y(y-x)^2 x^2/4+xy+y^2 利用平方差公式做?
因式分解吗?x(x-y)^2-y(y-x)^2=x(x-y)^2+y(x-y)^2=(x-y)^2 (x+y)=(x-y)(x^2-y^2)
x^2/4+xy+y^2=（1/2·x)+xy+y^2=(1/2·x+y)^2
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您好：x(x-y)^2-y(y-x)^2 x^2/4+xy+y^2 利用平方差公式做?
x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2
化简y(x+y)+(x+y)(x-y)-x^2
您好 X2-y2=2xy,求x-y除以x+y的值.
(x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
因式分解x(x+y)(x-y)-x(x+y)^2
[(x-y)^2-(x+2y)(x-2y)]/y
计算:y-x分之x+y+x-y分之y-y-x分之2x-y
x^2(x-y)+(y-x)
x(x-y)2-(y-x)3
【(x-y)^2+(x+y)(x-y)】除以 2x
[(x-y)²+(x+y)(x-y)]除以2x
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x
化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x
计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x
化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
化简：[(x+y)(x-y)(x+y)^2-2y(x-2y)](-2y) 谢谢!