(-x)^2·x^3·(-2y)^3+(-2xy)^2·(-x)^3·y
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计算:[(x+y/x-y)^2·(2y-2x/3x+3y)]-[(x^2/x^2-y^2)/(x/y)]今天止
(y+2x)(2x-y)-2(3x-2y)·(-2y-3x)-(11x-3x)(2x-3y)
x(x-y)2-(y-x)3
[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
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化简3x-2/(x+y)[(x+y)/3x-x-y]÷(x-y)/x
(x-y)^2·(y-x)^3=多少?
x-y)^2·(y-x)^3=多少?
|x|=2,|y|=3,且x·y
(x-y)·2(x-y)²·3(x-y)³ 计算
初一计算题:【3(x-y)²】·【-2(x-y)】·【5/4(x-y)】
(x-y)^3·(y-x)^2·(y-x)^5详细过程
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[(3x+y)(x-y)-(2x+3y)(x-y)]*(x-y)
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已知f(x)=3^x,求证:(1)f(x)·f(y)=f(x+y);(2)f(x)/f(y)=f(x-y).