锲犲纺鍒呜В:4x^3y+4x虏y虏+xy^3因式分解:4x^3y+4x²y²+xy^3因式分解:(a²+ab+b²)-9a²b²

(y-x)虏-(x+y)(x-y)锲犲纺鍒呜В （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) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)= (x+3y-4)(2x-y) (x-y)^3-(x-y)^4 因式分解 (x-y)^3+4(y-x)因式分解 (x-y)²+4(x-y)+3 (x-y)3乘(y-x)4 计算（2x-3y)(x+4y)-(3x+y)(x-2y)（2x-3y)(x+4y)-(3x+y)(x-2y) (x-y)^4+x(x-y)^3-y(y-x)^3因式分解(x-y)^4+x(x-y)^3-y(y-x)^3 因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+（x-3y)(x-5y)+(x-2y)(x-4y) x²/xy-x/y 3x/4x+y - x-2y/4x+y (1-y/y+x)÷x/y²-x² x(x-y)+4(y-x)因式分解 (x+y)(x-y)+4(y-1) x-4y分之3x + 4y-x分之x+y - x*x-4y分之7y