(-2x^4)^4 y^3+2x^10(-2x^2 y)^3+2x^4*5(x^4)^3(3y)^3

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 (x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)= x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x² (x+3y-4)(2x-y) 计算（2x-3y)(x+4y)-(3x+y)(x-2y)（2x-3y)(x+4y)-(3x+y)(x-2y) 因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y) 3x+x+4y+(90+10)x=3y-(2x+y)+510y=34x (4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuaihuajian 化简(x+y)-(2x+y/2)-(3x+y/6)-(4x+y/12)-(5x+y/20)-……-(10x+y/90) {4x-3y-10=0 3x-2y=0,{3x-4(x-y)=2 2x-3y=1,{2(x+y)-(x-y)=3 (x+y)-2(x-y)=1 (2x+y)(2x-3y)+x(2y+y) 2a(x-y)-4b(x-y) (2x-y)(2x+y)-2(3x-4y)(4y+3x) 4x*3-4x*2y-(x-y)因式分解 x^3+2x^2y-4x-8y 2x-{-3y+[4x-(2y-x)]} x^4+x^3y+x^2*y^2+y^3x+y^4分解因式