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объясните плееес
(9/m^2-3m+9 + 2m/3+m - m^3-15m^2/m^3+27)
объясните плееес
(9/m^2-3m+9 + 2m/3+m - m^3-15m^2/m^3+27)
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Answers & Comments
9/(m²-3m+9)+2m/(3+m)-(m³-15m²)/[(m+3)(m²-3m+9)]=
=(9m+27+2m³-6m²+18m-m³+15m²)/(m³+27)=
=(m³+9m²+27m+27)/(m³+27)=(m+3)³/[(m+3)(m²-3m+9)=(m+3)²/(m²-3m+9)