(2x-3y)(3x-2y)=

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(2x-3y)(3x-2y)=
(2x-3y)(3x-2y)=

(2x-3y)(3x-2y)=
原式=2x(3x-2y)-3y(3x-2y)
=6x²-4xy-9xy+6y²
=6x²-13xy+6y²

(2x-3y)(3x-2y)
=6x²-13xy+6y²
请好评
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原式=（2x-3y)^3 + [(3x-2y)-5(x-y)][(3x-2y)^2+5(3x-2y)(x-y)+25(x-y)^2]
=（2x-3y)^3 + （3y-2x)[(3x-2y)^2+5(3x-2y)(x-y)+25(x-y)^2]
=(2y-3x)【(2y-3x)^2 - (2y-3x)[(3x-2y)^2+5(3x-2y)(x-y)+25(x-y)^2] 】

(x-y) (x-2y)+(x+2y) (x-3y)-2(x-3y) (x-4y)= (x+y)(x-y)+(x-y)平方-(x-y)(3x-y) 其中x=-2 y=3分之一已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y) (x+y)(2x-3y)=? 【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2= 已知x-y=3,求[（x+y)(x-y)-(x-y)^2+2y(x-y)]除以的值已知3x =2y 求x/x+y+y/x-y-y²/x²-y² x(x-y)2-(y-x)3 若2/x-1/y=3,求[y/x-y/x-y(x-y/x-x+y)]/x-2y/x的值 [2/3x-2/x+y(x+y/3x-x-y)]/x-y/x 化简：{2/3x-2/(x+y)[(x+y)/3x-x-y]}/(x+y)/x 计算2/3x-2/x+y(x+y/3x-x-y)/x-y/x 化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x {(x+2)^2-(y-3)^2=(x+y)(x-y) {x-3y=2 (3x-y)^2+(3x+y)(3x-y),x=1,y=-2 2（x+y)-3(x-y)=3 ,4(x+y)+3(x-y)=15 (-x+2y)(2x+y)-(2x+y)(y-2x)-3xy=?因式分解计算：y(x-y)^2+(y-x)^3=?