Toán Lớp 8: cho a ³+b ³+c ³=3abc
hãy rút đó : abc/(a+b)(b+c)(c+a)
giúp mik
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Toán Lớp 8: cho a ³+b ³+c ³=3abc
hãy rút đó : abc/(a+b)(b+c)(c+a)
giúp mik
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