(2x^2-3y^2)^2-x^2y^2
3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少?3y/x*x-y*y+x/x*x-2xy+y*y+6y*y/x*x*x-x*x*y-xy*y+y*y*y等于多少?3y/x*x
x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2x-y/x-x+y/y-(x+y)(x-y)/y²y/x=2以上错误,修改如下:y/x=2
x(x-y)2-(y-x)3x(x-y)2-(y-x)3x(x-y)2-(y-x)3(x-y)(2x+3)
多项式因式分解,(1)y(x-y)+x(x-y)(2)y(x-y)+x(y-x)(3)a(x-y)^2-b(y-x)^2(4)a(x-y)^3-b(y-x)^3(5)a^2b(a-b)-ab^2(a-b)多项式因式分解,(1)y(x-y)+
化简y(x+y)+(x+y)(x-y)-x^2化简y(x+y)+(x+y)(x-y)-x^2化简y(x+y)+(x+y)(x-y)-x^2y(x+y)+(x+y)(x-y)-x^2=(x+y)(y+x-y)-x^2=(x+y)*x-x^2=
[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x[2/3x-2/x+y(x+y/3x-x-y)]/x-y/x看不懂,分式不好看,不知道分子分母是多少,你重新写一下,必要
化简:{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化简:{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x{2/
计算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计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x原式=[2/3x-2(x+y)(1/3x-1)/(x+y)]
化简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3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x(3x-2)/(x+y)*[(x+y
计算:x+2y/x-y+2x/y-x-3y/x-y计算:x+2y/x-y+2x/y-x-3y/x-y计算:x+2y/x-y+2x/y-x-3y/x-y原式=(x+2y)/(x-y)-2x/(x-y)-3y/(x-y)=(x+2y-2x-3y
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方(x-3y)(x+y)-(x-
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)=(x-y)[(3x+y)-(2x+3y)]*(
(x+y)(x-y)-(x-y)^2如题(x+y)(x-y)-(x-y)^2(x+y)(x-y)-(x-y)^2如题(x+y)(x-y)-(x-y)^2(x+y)(x-y)-(x-y)^2如题(x+y)(x-y)-(x-y)^2(x+y)(
紧急!(X-Y)^3*(X-Y)^2*(Y-X)(X-Y)^3*(X-Y)^2*(Y-X)得数是(X-Y)*(Y-X)吗?如果不是..紧急!(X-Y)^3*(X-Y)^2*(Y-X)(X-Y)^3*(X-Y)^2*(Y-X)得数是(X-Y)
因式分解x(x+y)(x-y)-x(x+y)^2因式分解x(x+y)(x-y)-x(x+y)^2因式分解x(x+y)(x-y)-x(x+y)^2x(x+y)(x-y)-x(x+y)^2=x(x+y)[(x-y)-(x+y)]=x(x+y)(
2X(2X-3Y)-3Y(X+Y)2X(2X-3Y)-3Y(X+Y)2X(2X-3Y)-3Y(X+Y)2X(2X-3Y)-3Y(X+Y)=4X^2-6XY-3XY-3Y^2=4X^2-9XY-3Y^2
(-2xy)^2-(3y-x)(-x-3y)(-2xy)^2-(3y-x)(-x-3y)(-2xy)^2-(3y-x)(-x-3y)(-2xy)^2-(3y-x)(-x-3y)=4x²y²+(9y²-x
(x+2y)^2-(x+y)(3x-y)(x+2y)^2-(x+y)(3x-y)(x+2y)^2-(x+y)(3x-y)原式=(x²+4xy+4y²)-(3x²+2xy-y²)=x²+4xy
计算(x+y)(x+y)^2(-x-y)^3计算(x+y)(x+y)^2(-x-y)^3计算(x+y)(x+y)^2(-x-y)^3(x+y)(x+y)^2(-x-y)^3=-(x+y)^6
化简:5(x-y)+2(x+y)-3(x-y)化简:5(x-y)+2(x+y)-3(x-y)化简:5(x-y)+2(x+y)-3(x-y)5(x-y)+2(x+y)-3(x-y)=5x-5y+2x+2y-3x+3y=4x