$\int \frac{{2{x^{12}} + 5{x^9}}}{{{{\left( {{x^5} + {x^3} + 1} \right)}^3}}}dx = $

  • A
    $\frac{{{x^5}}}{{2{{\left( {{x^5} + {x^3} + 1} \right)}^2}}} + c$
  • B
    $\frac{{ - {x^{10}}}}{{2{{\left( {{x^5} + {x^3} + 1} \right)}^2}}} + c$
  • C
    $\frac{{ - {x^5}}}{{{{\left( {{x^5} + {x^3} + 1} \right)}^2}}} + c$
  • D
    $\frac{{{x^{10}}}}{{2{{\left( {{x^5} + {x^3} + 1} \right)}^2}}} + c$

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