因式分解(x-2y)(x-3y)+(x-4y)(x-5y)+(x-3y)(x-5y)+(x-2y)(x-4y)
(x-y)^3-(x-y)^4 因式分解
4x(y-x)-y^2因式分解
(x-y)^2-(x-y)^3因式分解
(x+y)^2-3(x-y)因式分解
因式分解:x^2-y^2-3x-5y-4
4x*3-4x*2y-(x-y)因式分解
4x^3-4x^2y-(x-y)因式分解
x(x-y)+4(y-x)因式分解
因式分解3x^2(x-y)+6x(y-x)
(x+2)(x+3) (x-4)(x+1) (y+4)(y-2) (y-5)(y-3)
3(x+y)-4(x-y)=11,2(x-y)+5(x+y)=27
计算(x^8-x^7y+x^5y^3-x^4y^4+x^3y^5-x^y^7+y^8)(x^2+xy+y^2)