S9infinite S9infinite

22-02-2017
Mathematics

contestada

Find the sum

9/xy + x^2/y

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Аноним Аноним

22-02-2017

9/xy + x^2/y
x^3y +9y
= ----------------
xy^2

y(x^3+9)
= ----------------
xy^2

x^3 +9
= --------------
xy

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