Integrand size = 81, antiderivative size = 28 \[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=\left (-e^x+e^{\frac {x \left (-2+e^4 x\right )}{\frac {5}{4}+x}}\right ) (5+x) \]
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\[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=\int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx \]
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Rubi steps \begin{align*} \text {integral}& = \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{(5+4 x)^2} \, dx \\ & = \int \left (-e^x (6+x)+\frac {e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} \left (-175+200 e^4 x+8 \left (2+15 e^4\right ) x^2+16 e^4 x^3\right )}{(5+4 x)^2}\right ) \, dx \\ & = -\int e^x (6+x) \, dx+\int \frac {e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} \left (-175+200 e^4 x+8 \left (2+15 e^4\right ) x^2+16 e^4 x^3\right )}{(5+4 x)^2} \, dx \\ & = -e^x (6+x)+\int e^x \, dx+\int \left (e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} \left (1+5 e^4\right )+e^{4+\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} x-\frac {75 e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} \left (8+5 e^4\right )}{4 (5+4 x)^2}-\frac {5 e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} \left (8+5 e^4\right )}{4 (5+4 x)}\right ) \, dx \\ & = e^x-e^x (6+x)+\left (1+5 e^4\right ) \int e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} \, dx-\frac {1}{4} \left (5 \left (8+5 e^4\right )\right ) \int \frac {e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}}}{5+4 x} \, dx-\frac {1}{4} \left (75 \left (8+5 e^4\right )\right ) \int \frac {e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}}}{(5+4 x)^2} \, dx+\int e^{4+\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} x \, dx \\ & = e^x-e^x (6+x)+\left (1+5 e^4\right ) \int e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}} \, dx-\frac {1}{4} \left (5 \left (8+5 e^4\right )\right ) \int \frac {e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}}}{5+4 x} \, dx-\frac {1}{4} \left (75 \left (8+5 e^4\right )\right ) \int \frac {e^{\frac {4 x \left (-2+e^4 x\right )}{5+4 x}}}{(5+4 x)^2} \, dx+\int e^{\frac {4 \left (5+2 x+e^4 x^2\right )}{5+4 x}} x \, dx \\ \end{align*}
Time = 0.59 (sec) , antiderivative size = 56, normalized size of antiderivative = 2.00 \[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=e^{-2-\frac {5 e^4}{2}} \left (-e^{2+\frac {5 e^4}{2}+x}+e^{\frac {20+e^4 \left (25+20 x+8 x^2\right )}{10+8 x}}\right ) (5+x) \]
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Time = 0.50 (sec) , antiderivative size = 31, normalized size of antiderivative = 1.11
method | result | size |
risch | \(\left (-x -5\right ) {\mathrm e}^{x}+\left (5+x \right ) {\mathrm e}^{\frac {4 x \left (x \,{\mathrm e}^{4}-2\right )}{5+4 x}}\) | \(31\) |
parallelrisch | \(-{\mathrm e}^{x} x +x \,{\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}-5 \,{\mathrm e}^{x}+5 \,{\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}\) | \(55\) |
parts | \(-5 \,{\mathrm e}^{x}-{\mathrm e}^{x} x +\frac {25 x \,{\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}+4 x^{2} {\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}+25 \,{\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}}{5+4 x}\) | \(90\) |
norman | \(\frac {25 x \,{\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}+4 x^{2} {\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}-25 \,{\mathrm e}^{x} x -4 \,{\mathrm e}^{x} x^{2}-25 \,{\mathrm e}^{x}+25 \,{\mathrm e}^{\frac {4 x^{2} {\mathrm e}^{4}-8 x}{5+4 x}}}{5+4 x}\) | \(96\) |
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Time = 0.26 (sec) , antiderivative size = 32, normalized size of antiderivative = 1.14 \[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=-{\left (x + 5\right )} e^{x} + {\left (x + 5\right )} e^{\left (\frac {4 \, {\left (x^{2} e^{4} - 2 \, x\right )}}{4 \, x + 5}\right )} \]
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Time = 0.28 (sec) , antiderivative size = 29, normalized size of antiderivative = 1.04 \[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=\left (- x - 5\right ) e^{x} + \left (x + 5\right ) e^{\frac {4 x^{2} e^{4} - 8 x}{4 x + 5}} \]
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\[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=\int { -\frac {{\left (16 \, x^{3} + 136 \, x^{2} + 265 \, x + 150\right )} e^{x} - {\left (16 \, x^{2} + 8 \, {\left (2 \, x^{3} + 15 \, x^{2} + 25 \, x\right )} e^{4} - 175\right )} e^{\left (\frac {4 \, {\left (x^{2} e^{4} - 2 \, x\right )}}{4 \, x + 5}\right )}}{16 \, x^{2} + 40 \, x + 25} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 54 vs. \(2 (26) = 52\).
Time = 0.32 (sec) , antiderivative size = 54, normalized size of antiderivative = 1.93 \[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=-x e^{x} + x e^{\left (\frac {4 \, {\left (x^{2} e^{4} - 2 \, x\right )}}{4 \, x + 5}\right )} - 5 \, e^{x} + 5 \, e^{\left (\frac {4 \, {\left (x^{2} e^{4} - 2 \, x\right )}}{4 \, x + 5}\right )} \]
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Time = 9.65 (sec) , antiderivative size = 35, normalized size of antiderivative = 1.25 \[ \int \frac {e^x \left (-150-265 x-136 x^2-16 x^3\right )+e^{\frac {-8 x+4 e^4 x^2}{5+4 x}} \left (-175+16 x^2+e^4 \left (200 x+120 x^2+16 x^3\right )\right )}{25+40 x+16 x^2} \, dx=\left ({\mathrm {e}}^{\frac {4\,x^2\,{\mathrm {e}}^4}{4\,x+5}-\frac {8\,x}{4\,x+5}}-{\mathrm {e}}^x\right )\,\left (x+5\right ) \]
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