(x+5y)^+(2x+10y)(3x-y)+(3x-y)^
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(x+5y)^+(2x+10y)(3x-y)+(3x-y)^
(x+5y)^+(2x+10y)(3x-y)+(3x-y)^
=(x+5y)^+2(x+5y)(3x-y)+(3x-y)^
=[(x+5y)+(3x-y)]^
=(4x+4y)^
=16(x+y)^
=(x+5y)^+2(x+5y)(3x-y)+(3x-y)^
=[(x+5y)+(3x-y)]^
=(4x+4y)^
=16(x+y)^
数学(x-y)^5*(y-x)^3*(x-y)^2
已知x-y/x+y=3,求代数式5(x-y)/x+y-x+y/2(x-y)
(2X-3y)-(5x-y)
[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)
化简:(x-3y)(x+y)-(x-2y)(x+2y)-(x-y)平方
【x-3y][x+y]-[x-2y][x +2y]-[x-y
先化简再求值(x-y)(x+y)-(x-2y) 的完全平方+x(3x-5y)-(x-y)(x-2y),其中x=1/2 y
有这样一道题:"计算(2*x*x*x-3*x*x*y-2*x*y*y)-(x*x*x-2*x*y*y+y*y*y)+【-
[(x+2y)(x-2y)-(2x-y)^2+(3x-y))2x-5y)]/(-x)
(4x-2y-z)-{5x[8y-2y-(x+y)]-x+(3y-10z)]=? kuai
2(2x+3y)(3x+2y)-(6x-y)(2x-5y)
(x+2)(x+3) (x-4)(x+1) (y+4)(y-2) (y-5)(y-3)