Integrand size = 67, antiderivative size = 21 \[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=-3+x+\frac {9 e^{3 x}}{5 \left (e^{25+x}+x\right )} \]
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\[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=\int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 \left (e^{25+x}+x\right )^2} \, dx \\ & = \frac {1}{5} \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{\left (e^{25+x}+x\right )^2} \, dx \\ & = \frac {1}{5} \int \left (18 e^{-25+2 x}-9 e^{-50+x} (1+x)-\frac {9 (-1+x) x^3}{e^{75} \left (e^{25+x}+x\right )^2}+\frac {9 (-3+x) x^2}{e^{75} \left (e^{25+x}+x\right )}+\frac {5 e^{75}+18 x}{e^{75}}\right ) \, dx \\ & = \frac {\left (5 e^{75}+18 x\right )^2}{180 e^{75}}-\frac {9}{5} \int e^{-50+x} (1+x) \, dx+\frac {18}{5} \int e^{-25+2 x} \, dx-\frac {9 \int \frac {(-1+x) x^3}{\left (e^{25+x}+x\right )^2} \, dx}{5 e^{75}}+\frac {9 \int \frac {(-3+x) x^2}{e^{25+x}+x} \, dx}{5 e^{75}} \\ & = \frac {9}{5} e^{-25+2 x}-\frac {9}{5} e^{-50+x} (1+x)+\frac {\left (5 e^{75}+18 x\right )^2}{180 e^{75}}+\frac {9}{5} \int e^{-50+x} \, dx-\frac {9 \int \left (-\frac {x^3}{\left (e^{25+x}+x\right )^2}+\frac {x^4}{\left (e^{25+x}+x\right )^2}\right ) \, dx}{5 e^{75}}+\frac {9 \int \left (-\frac {3 x^2}{e^{25+x}+x}+\frac {x^3}{e^{25+x}+x}\right ) \, dx}{5 e^{75}} \\ & = \frac {9 e^{-50+x}}{5}+\frac {9}{5} e^{-25+2 x}-\frac {9}{5} e^{-50+x} (1+x)+\frac {\left (5 e^{75}+18 x\right )^2}{180 e^{75}}+\frac {9 \int \frac {x^3}{\left (e^{25+x}+x\right )^2} \, dx}{5 e^{75}}-\frac {9 \int \frac {x^4}{\left (e^{25+x}+x\right )^2} \, dx}{5 e^{75}}+\frac {9 \int \frac {x^3}{e^{25+x}+x} \, dx}{5 e^{75}}-\frac {27 \int \frac {x^2}{e^{25+x}+x} \, dx}{5 e^{75}} \\ \end{align*}
Time = 2.40 (sec) , antiderivative size = 34, normalized size of antiderivative = 1.62 \[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=\frac {9 e^{3 x}+5 e^{25+x} x+5 x^2}{5 \left (e^{25+x}+x\right )} \]
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Time = 0.16 (sec) , antiderivative size = 18, normalized size of antiderivative = 0.86
method | result | size |
parts | \(x +\frac {9 \,{\mathrm e}^{3 x}}{5 \left ({\mathrm e}^{x} {\mathrm e}^{25}+x \right )}\) | \(18\) |
norman | \(\frac {x^{2}+x \,{\mathrm e}^{x} {\mathrm e}^{25}+\frac {9 \,{\mathrm e}^{3 x}}{5}}{{\mathrm e}^{x} {\mathrm e}^{25}+x}\) | \(27\) |
risch | \(\frac {5 x \,{\mathrm e}^{x +25}+5 x^{2}+9 \,{\mathrm e}^{3 x}}{5 \,{\mathrm e}^{x +25}+5 x}\) | \(30\) |
parallelrisch | \(\frac {5 x \,{\mathrm e}^{x +25}+5 x^{2}+9 \,{\mathrm e}^{3 x}}{5 \,{\mathrm e}^{x +25}+5 x}\) | \(30\) |
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Leaf count of result is larger than twice the leaf count of optimal. 36 vs. \(2 (17) = 34\).
Time = 0.25 (sec) , antiderivative size = 36, normalized size of antiderivative = 1.71 \[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=\frac {5 \, x^{2} e^{75} + 5 \, x e^{\left (x + 100\right )} + 9 \, e^{\left (3 \, x + 75\right )}}{5 \, {\left (x e^{75} + e^{\left (x + 100\right )}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 70 vs. \(2 (19) = 38\).
Time = 0.12 (sec) , antiderivative size = 70, normalized size of antiderivative = 3.33 \[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=- \frac {9 x^{3}}{5 x e^{75} + 5 e^{100} \sqrt [3]{e^{3 x}}} + \frac {9 x^{2}}{5 e^{75}} + x + \frac {- 45 x e^{25} \sqrt [3]{e^{3 x}} + 45 e^{50} \left (e^{3 x}\right )^{\frac {2}{3}}}{25 e^{75}} \]
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Time = 0.25 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.38 \[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=\frac {5 \, x^{2} + 5 \, x e^{\left (x + 25\right )} + 9 \, e^{\left (3 \, x\right )}}{5 \, {\left (x + e^{\left (x + 25\right )}\right )}} \]
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Leaf count of result is larger than twice the leaf count of optimal. 62 vs. \(2 (17) = 34\).
Time = 0.27 (sec) , antiderivative size = 62, normalized size of antiderivative = 2.95 \[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=\frac {5 \, {\left (x + 25\right )}^{2} e^{75} - 125 \, {\left (x + 25\right )} e^{75} + 5 \, {\left (x + 25\right )} e^{\left (x + 100\right )} - 5625 \, x + 9 \, e^{\left (3 \, x + 75\right )} - 5625 \, e^{\left (x + 25\right )}}{5 \, {\left ({\left (x + 25\right )} e^{75} - 25 \, e^{75} + e^{\left (x + 100\right )}\right )}} \]
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Time = 13.13 (sec) , antiderivative size = 20, normalized size of antiderivative = 0.95 \[ \int \frac {5 e^{50+2 x}+10 e^{25+x} x+5 x^2+e^{3 x} \left (-9+18 e^{25+x}+27 x\right )}{5 e^{50+2 x}+10 e^{25+x} x+5 x^2} \, dx=x+\frac {9\,{\mathrm {e}}^{3\,x}}{5\,\left (x+{\mathrm {e}}^{x+25}\right )} \]
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