[(5X+3Y)(4X-3y)-(X+3Y)(X-3Y)]÷(-4X)

因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y) （y-x)+x(x-y)^3-(y-x)^4 因式分解 计算 3x+4y/x-y+3y/y-x-4x/x-y 3x+4y/x-y +3y/y-x -4x/x-y x(4y-x)(x-3y)+y(3y-x)(x-4y)因式分解 （x+y-5)*（x+y-5)+（x-y+3)=0 x*x-y*y 已知:3x-5y=0,求x/y,x-y/y,x-y/x （5x-3y)(3y+5x)-(4y-3x)(3x-4y) 5/4(x+y)(-x-y)^3*[-4/3(x-y)]*[-3/5(y-x)^2] （5x+3y)(3y-5x)-(4x-y)(4y+x)= 5x^3y(x-y)^3-10x^4y^3(y-x)^2因式分解 5x^3y(x-y)^3-10x^4y^3(y-x)^2 5X^3Y(X-Y)-10X^4Y^3(Y-X)^2因式分解 (3x-4y)(5x-4y)-(7x-8y)(6y-5x) 4(x-y)-3(x-y)=9 5(x-y)+2(x-y)=11 3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27 （x+y）^6/(x+y)^4-(x-y)^5/(x-y)^3 化简 .. (2x-y)(3x-4y)-2(x-y)(2x-5y)简便运算