(x+2y)^2(x-2y)^2-2(x+2y)(x-2y),其中x=2008,y=-1

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(x+2y)^2(x-2y)^2-2(x+2y)(x-2y),其中x=2008,y=-1
(x+2y)^2(x-2y)^2-2(x+2y)(x-2y),其中x=2008,y=-1

(x+2y)^2(x-2y)^2-2(x+2y)(x-2y),其中x=2008,y=-1
(x+2y)^2(x-2y)^2-2(x+2y)(x-2y)
=(x+2y)^2(x-2y)^2-2(x+2y)(x-2y)+1-1
=[(x+2y)(x-2y)-1]^2+1
=(2006×2010-1)^2+1
=16257499779482

x-y/x-x+y/y-(x+y)(x-y)/y² y/x=2 化简y(x+y)+(x+y)(x-y)-x^2 因式分解x(x+y)(x-y)-x(x+y)^2 (x+y)(x-y)-(x-y)^2如题 (x+y)(x-y)-(x-y)^2 【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y) x^2(x-y)+(y-x) x(x-y)2-(y-x)3 【(x-y)^2+(x+y)(x-y)】除以 2x 计算:y-x分之x+y+x-y分之y-y-x分之2x-y [(x-y)²+(x+y)(x-y)]除以2x [(x-y)^2-(x+2y)(x-2y)]/y [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 计算[2x^2-(x+y)(x-y)][(-x-y)(y-x)+2y^2] (x+y)^2(x-y)^2-(x-y)(x+y)(x^2+y^2)分解因式（x-y)(x-y)2(y-x) (x+2y-?）(x-2y+?)