Find the function to which the given series converges within its interval of convergence. Use exact values.
−
x
3
−
x
4
2
−
x
5
3
−
x
6
4
−
x
7
5
−
x
8
6
−
…
…
=
\displaystyle -{x}^{{3}}-\frac{{x}^{{4}}}{{2}}-\frac{{x}^{{5}}}{{3}}-\frac{{x}^{{6}}}{{4}}-\frac{{x}^{{7}}}{{5}}-\frac{{x}^{{8}}}{{6}}-\ldots\ldots=
−
x
3
−
2
x
4
−
3
x
5
−
4
x
6
−
5
x
7
−
6
x
8
−
……
=
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