1.x/x-y * y^2/x+y -x^4y/x^4-y^4÷ x^2/x^2+y^2 2.(x^2-4/x^2-x-6+ x+2/x-3)÷ x+1/x-33.(x+1-1/1-x)÷（x- x^2/x-1)4.x-1/x^2+3x+2/6/2+x-x^2-10-x/4-x^21111111111111111111111111111111

来源：学生作业帮助网编辑：作业帮时间：2024/05/03 22:05:43

1.x/x-y * y^2/x+y -x^4y/x^4-y^4÷ x^2/x^2+y^2 2.(x^2-4/x^2-x-6+ x+2/x-3)÷ x+1/x-33.(x+1-1/1-x)÷（x- x^2/x-1)4.x-1/x^2+3x+2/6/2+x-x^2-10-x/4-x^21111111111111111111111111111111
1.x/x-y * y^2/x+y -x^4y/x^4-y^4÷ x^2/x^2+y^2 2.(x^2-4/x^2-x-6+ x+2/x-3)÷ x+1/x-3
3.(x+1-1/1-x)÷（x- x^2/x-1)
4.x-1/x^2+3x+2/6/2+x-x^2-10-x/4-x^2
1111111111111111111111111111111

1.x/x-y * y^2/x+y -x^4y/x^4-y^4÷ x^2/x^2+y^2 2.(x^2-4/x^2-x-6+ x+2/x-3)÷ x+1/x-33.(x+1-1/1-x)÷（x- x^2/x-1)4.x-1/x^2+3x+2/6/2+x-x^2-10-x/4-x^21111111111111111111111111111111
3.(x+1-1/1-x)÷（x- x^2/x-1)
=(x+1)^2(x-1)+(x+1)/(x+1)(x-1)除以-x/x-1
=(x+1){(x+1)(x-1)+1}/(x+1)(x-1)除以-x/x-1
=x^2/x-1*x-1/-x
=-x
1.x/(x-y)*y^2/(x+y)
=xy^2/[(x-y)(x+y)]
=xy^2/(x^2-y^2)
[x^4y/(x^4-y^4)]/[x^2/(x^2+y^2)]
={x^4y/[(x^2-y^2)(x^2+y^2)]}*[(x^2+y^2)/x^2]
=x^2y/(x^2-y^2)
所以原式=xy^2/(x^2-y^2)-x^2y/(x^2-y^2)
=(xy^2-x^2y)/(x^2-y^2)
=[xy(y-x)]/[[(x-y)(x+y)]
=-[xy(x-y)]/[[(x-y)(x+y)]
=-xy/(x+y)
还有一题………………不会!

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 {(x,y) |x|+|y| x>y?x:y 因式分解x(x+y)(x-y)-x(x+y)^2 (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) x^2(x-y)+(y-x) x(x-y)2-(y-x)3 计算:y-x分之x+y+x-y分之y-y-x分之2x-y [(x-y)^2-(x+2y)(x-2y)]/y 【(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 1.（x+2)^2-(x+y)^32.(x-y)^2-(x-y)^33.(x-y)^2-(y-x)^3