(x-4y)(x-y)-(x+3y)(x-6y)-5x(2-y),其中x=﹣1/3,y=1/2(x²-nx+3)(x²+3x+m)的展开式中不含x²和x³项,求m和 n的值
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(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
(3x-y)(3y+x)-(x-y)(x+y)
{(x,y) |x|+|y|
x>y?x:y
(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+y)(x-y)+4(y-1)