通分.2x+6y/(x-3y), x/(x-9y^2), 1/(x^2-6xy+9y^2),就这一题了
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通分.2x+6y/(x-3y), x/(x-9y^2), 1/(x^2-6xy+9y^2),就这一题了
通分.2x+6y/(x-3y), x/(x-9y^2), 1/(x^2-6xy+9y^2),就这一题了
通分.2x+6y/(x-3y), x/(x-9y^2), 1/(x^2-6xy+9y^2),就这一题了
题出错了吧应该是2x+6y/(x-3y), x/(x^2-9y^2), 1/(x^2-6xy+9y^2)吧?如果是这个通分结果:分母(x+3y)*(x-3y)^2.分子分别为:2(x+3y)^2*(x-3y),x*(x-3y),x+3y.
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通分.2x+6y/(x-3y), x/(x-9y^2), 1/(x^2-6xy+9y^2),就这一题了
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