Integrand size = 15, antiderivative size = 134 \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=-\frac {6 b^2 \cosh (c+d x)}{d^4}-\frac {a^2 \cosh (c+d x)}{d^2}-\frac {4 a b x \cosh (c+d x)}{d^2}-\frac {3 b^2 x^2 \cosh (c+d x)}{d^2}+\frac {4 a b \sinh (c+d x)}{d^3}+\frac {6 b^2 x \sinh (c+d x)}{d^3}+\frac {a^2 x \sinh (c+d x)}{d}+\frac {2 a b x^2 \sinh (c+d x)}{d}+\frac {b^2 x^3 \sinh (c+d x)}{d} \]
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Time = 0.17 (sec) , antiderivative size = 134, normalized size of antiderivative = 1.00, number of steps used = 11, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.267, Rules used = {6874, 3377, 2718, 2717} \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=-\frac {a^2 \cosh (c+d x)}{d^2}+\frac {a^2 x \sinh (c+d x)}{d}+\frac {4 a b \sinh (c+d x)}{d^3}-\frac {4 a b x \cosh (c+d x)}{d^2}+\frac {2 a b x^2 \sinh (c+d x)}{d}-\frac {6 b^2 \cosh (c+d x)}{d^4}+\frac {6 b^2 x \sinh (c+d x)}{d^3}-\frac {3 b^2 x^2 \cosh (c+d x)}{d^2}+\frac {b^2 x^3 \sinh (c+d x)}{d} \]
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Rule 2717
Rule 2718
Rule 3377
Rule 6874
Rubi steps \begin{align*} \text {integral}& = \int \left (a^2 x \cosh (c+d x)+2 a b x^2 \cosh (c+d x)+b^2 x^3 \cosh (c+d x)\right ) \, dx \\ & = a^2 \int x \cosh (c+d x) \, dx+(2 a b) \int x^2 \cosh (c+d x) \, dx+b^2 \int x^3 \cosh (c+d x) \, dx \\ & = \frac {a^2 x \sinh (c+d x)}{d}+\frac {2 a b x^2 \sinh (c+d x)}{d}+\frac {b^2 x^3 \sinh (c+d x)}{d}-\frac {a^2 \int \sinh (c+d x) \, dx}{d}-\frac {(4 a b) \int x \sinh (c+d x) \, dx}{d}-\frac {\left (3 b^2\right ) \int x^2 \sinh (c+d x) \, dx}{d} \\ & = -\frac {a^2 \cosh (c+d x)}{d^2}-\frac {4 a b x \cosh (c+d x)}{d^2}-\frac {3 b^2 x^2 \cosh (c+d x)}{d^2}+\frac {a^2 x \sinh (c+d x)}{d}+\frac {2 a b x^2 \sinh (c+d x)}{d}+\frac {b^2 x^3 \sinh (c+d x)}{d}+\frac {(4 a b) \int \cosh (c+d x) \, dx}{d^2}+\frac {\left (6 b^2\right ) \int x \cosh (c+d x) \, dx}{d^2} \\ & = -\frac {a^2 \cosh (c+d x)}{d^2}-\frac {4 a b x \cosh (c+d x)}{d^2}-\frac {3 b^2 x^2 \cosh (c+d x)}{d^2}+\frac {4 a b \sinh (c+d x)}{d^3}+\frac {6 b^2 x \sinh (c+d x)}{d^3}+\frac {a^2 x \sinh (c+d x)}{d}+\frac {2 a b x^2 \sinh (c+d x)}{d}+\frac {b^2 x^3 \sinh (c+d x)}{d}-\frac {\left (6 b^2\right ) \int \sinh (c+d x) \, dx}{d^3} \\ & = -\frac {6 b^2 \cosh (c+d x)}{d^4}-\frac {a^2 \cosh (c+d x)}{d^2}-\frac {4 a b x \cosh (c+d x)}{d^2}-\frac {3 b^2 x^2 \cosh (c+d x)}{d^2}+\frac {4 a b \sinh (c+d x)}{d^3}+\frac {6 b^2 x \sinh (c+d x)}{d^3}+\frac {a^2 x \sinh (c+d x)}{d}+\frac {2 a b x^2 \sinh (c+d x)}{d}+\frac {b^2 x^3 \sinh (c+d x)}{d} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 87, normalized size of antiderivative = 0.65 \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=\frac {-\left (\left (a^2 d^2+4 a b d^2 x+3 b^2 \left (2+d^2 x^2\right )\right ) \cosh (c+d x)\right )+d \left (a^2 d^2 x+2 a b \left (2+d^2 x^2\right )+b^2 x \left (6+d^2 x^2\right )\right ) \sinh (c+d x)}{d^4} \]
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Time = 0.22 (sec) , antiderivative size = 108, normalized size of antiderivative = 0.81
method | result | size |
parallelrisch | \(\frac {4 \left (\frac {3 b x}{4}+a \right ) d^{2} x b \tanh \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}-2 d \left (x \left (b x +a \right )^{2} d^{2}+6 b^{2} x +4 a b \right ) \tanh \left (\frac {d x}{2}+\frac {c}{2}\right )+\left (3 x^{2} b^{2}+4 a b x +2 a^{2}\right ) d^{2}+12 b^{2}}{d^{4} \left (\tanh \left (\frac {d x}{2}+\frac {c}{2}\right )^{2}-1\right )}\) | \(108\) |
risch | \(\frac {\left (b^{2} d^{3} x^{3}+2 a b \,d^{3} x^{2}+a^{2} d^{3} x -3 x^{2} d^{2} b^{2}-4 a b \,d^{2} x -a^{2} d^{2}+6 b^{2} d x +4 d a b -6 b^{2}\right ) {\mathrm e}^{d x +c}}{2 d^{4}}-\frac {\left (b^{2} d^{3} x^{3}+2 a b \,d^{3} x^{2}+a^{2} d^{3} x +3 x^{2} d^{2} b^{2}+4 a b \,d^{2} x +a^{2} d^{2}+6 b^{2} d x +4 d a b +6 b^{2}\right ) {\mathrm e}^{-d x -c}}{2 d^{4}}\) | \(172\) |
parts | \(\frac {b^{2} x^{3} \sinh \left (d x +c \right )}{d}+\frac {2 a b \,x^{2} \sinh \left (d x +c \right )}{d}+\frac {a^{2} x \sinh \left (d x +c \right )}{d}-\frac {\frac {3 b^{2} \left (\left (d x +c \right )^{2} \cosh \left (d x +c \right )-2 \left (d x +c \right ) \sinh \left (d x +c \right )+2 \cosh \left (d x +c \right )\right )}{d^{2}}-\frac {6 b^{2} c \left (\left (d x +c \right ) \cosh \left (d x +c \right )-\sinh \left (d x +c \right )\right )}{d^{2}}+\frac {4 b a \left (\left (d x +c \right ) \cosh \left (d x +c \right )-\sinh \left (d x +c \right )\right )}{d}+\frac {3 b^{2} c^{2} \cosh \left (d x +c \right )}{d^{2}}-\frac {4 b c a \cosh \left (d x +c \right )}{d}+\cosh \left (d x +c \right ) a^{2}}{d^{2}}\) | \(197\) |
meijerg | \(\frac {8 b^{2} \cosh \left (c \right ) \sqrt {\pi }\, \left (\frac {3}{4 \sqrt {\pi }}-\frac {\left (\frac {3 x^{2} d^{2}}{2}+3\right ) \cosh \left (d x \right )}{4 \sqrt {\pi }}+\frac {d x \left (\frac {x^{2} d^{2}}{2}+3\right ) \sinh \left (d x \right )}{4 \sqrt {\pi }}\right )}{d^{4}}-\frac {8 i b^{2} \sinh \left (c \right ) \sqrt {\pi }\, \left (\frac {i x d \left (\frac {5 x^{2} d^{2}}{2}+15\right ) \cosh \left (d x \right )}{20 \sqrt {\pi }}-\frac {i \left (\frac {15 x^{2} d^{2}}{2}+15\right ) \sinh \left (d x \right )}{20 \sqrt {\pi }}\right )}{d^{4}}+\frac {8 i a b \cosh \left (c \right ) \sqrt {\pi }\, \left (\frac {i x d \cosh \left (d x \right )}{2 \sqrt {\pi }}-\frac {i \left (\frac {3 x^{2} d^{2}}{2}+3\right ) \sinh \left (d x \right )}{6 \sqrt {\pi }}\right )}{d^{3}}+\frac {8 b a \sinh \left (c \right ) \sqrt {\pi }\, \left (-\frac {1}{2 \sqrt {\pi }}+\frac {\left (\frac {x^{2} d^{2}}{2}+1\right ) \cosh \left (d x \right )}{2 \sqrt {\pi }}-\frac {d x \sinh \left (d x \right )}{2 \sqrt {\pi }}\right )}{d^{3}}-\frac {2 a^{2} \cosh \left (c \right ) \sqrt {\pi }\, \left (-\frac {1}{2 \sqrt {\pi }}+\frac {\cosh \left (d x \right )}{2 \sqrt {\pi }}-\frac {d x \sinh \left (d x \right )}{2 \sqrt {\pi }}\right )}{d^{2}}+\frac {a^{2} \sinh \left (c \right ) \left (\cosh \left (d x \right ) x d -\sinh \left (d x \right )\right )}{d^{2}}\) | \(274\) |
derivativedivides | \(\frac {\frac {b^{2} \left (\left (d x +c \right )^{3} \sinh \left (d x +c \right )-3 \left (d x +c \right )^{2} \cosh \left (d x +c \right )+6 \left (d x +c \right ) \sinh \left (d x +c \right )-6 \cosh \left (d x +c \right )\right )}{d^{2}}-\frac {3 b^{2} c \left (\left (d x +c \right )^{2} \sinh \left (d x +c \right )-2 \left (d x +c \right ) \cosh \left (d x +c \right )+2 \sinh \left (d x +c \right )\right )}{d^{2}}+\frac {2 b a \left (\left (d x +c \right )^{2} \sinh \left (d x +c \right )-2 \left (d x +c \right ) \cosh \left (d x +c \right )+2 \sinh \left (d x +c \right )\right )}{d}+\frac {3 b^{2} c^{2} \left (\left (d x +c \right ) \sinh \left (d x +c \right )-\cosh \left (d x +c \right )\right )}{d^{2}}-\frac {4 b c a \left (\left (d x +c \right ) \sinh \left (d x +c \right )-\cosh \left (d x +c \right )\right )}{d}+a^{2} \left (\left (d x +c \right ) \sinh \left (d x +c \right )-\cosh \left (d x +c \right )\right )-\frac {b^{2} c^{3} \sinh \left (d x +c \right )}{d^{2}}+\frac {2 b \,c^{2} a \sinh \left (d x +c \right )}{d}-c \,a^{2} \sinh \left (d x +c \right )}{d^{2}}\) | \(283\) |
default | \(\frac {\frac {b^{2} \left (\left (d x +c \right )^{3} \sinh \left (d x +c \right )-3 \left (d x +c \right )^{2} \cosh \left (d x +c \right )+6 \left (d x +c \right ) \sinh \left (d x +c \right )-6 \cosh \left (d x +c \right )\right )}{d^{2}}-\frac {3 b^{2} c \left (\left (d x +c \right )^{2} \sinh \left (d x +c \right )-2 \left (d x +c \right ) \cosh \left (d x +c \right )+2 \sinh \left (d x +c \right )\right )}{d^{2}}+\frac {2 b a \left (\left (d x +c \right )^{2} \sinh \left (d x +c \right )-2 \left (d x +c \right ) \cosh \left (d x +c \right )+2 \sinh \left (d x +c \right )\right )}{d}+\frac {3 b^{2} c^{2} \left (\left (d x +c \right ) \sinh \left (d x +c \right )-\cosh \left (d x +c \right )\right )}{d^{2}}-\frac {4 b c a \left (\left (d x +c \right ) \sinh \left (d x +c \right )-\cosh \left (d x +c \right )\right )}{d}+a^{2} \left (\left (d x +c \right ) \sinh \left (d x +c \right )-\cosh \left (d x +c \right )\right )-\frac {b^{2} c^{3} \sinh \left (d x +c \right )}{d^{2}}+\frac {2 b \,c^{2} a \sinh \left (d x +c \right )}{d}-c \,a^{2} \sinh \left (d x +c \right )}{d^{2}}\) | \(283\) |
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Time = 0.25 (sec) , antiderivative size = 95, normalized size of antiderivative = 0.71 \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=-\frac {{\left (3 \, b^{2} d^{2} x^{2} + 4 \, a b d^{2} x + a^{2} d^{2} + 6 \, b^{2}\right )} \cosh \left (d x + c\right ) - {\left (b^{2} d^{3} x^{3} + 2 \, a b d^{3} x^{2} + 4 \, a b d + {\left (a^{2} d^{3} + 6 \, b^{2} d\right )} x\right )} \sinh \left (d x + c\right )}{d^{4}} \]
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Time = 0.26 (sec) , antiderivative size = 172, normalized size of antiderivative = 1.28 \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=\begin {cases} \frac {a^{2} x \sinh {\left (c + d x \right )}}{d} - \frac {a^{2} \cosh {\left (c + d x \right )}}{d^{2}} + \frac {2 a b x^{2} \sinh {\left (c + d x \right )}}{d} - \frac {4 a b x \cosh {\left (c + d x \right )}}{d^{2}} + \frac {4 a b \sinh {\left (c + d x \right )}}{d^{3}} + \frac {b^{2} x^{3} \sinh {\left (c + d x \right )}}{d} - \frac {3 b^{2} x^{2} \cosh {\left (c + d x \right )}}{d^{2}} + \frac {6 b^{2} x \sinh {\left (c + d x \right )}}{d^{3}} - \frac {6 b^{2} \cosh {\left (c + d x \right )}}{d^{4}} & \text {for}\: d \neq 0 \\\left (\frac {a^{2} x^{2}}{2} + \frac {2 a b x^{3}}{3} + \frac {b^{2} x^{4}}{4}\right ) \cosh {\left (c \right )} & \text {otherwise} \end {cases} \]
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Leaf count of result is larger than twice the leaf count of optimal. 275 vs. \(2 (134) = 268\).
Time = 0.19 (sec) , antiderivative size = 275, normalized size of antiderivative = 2.05 \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=-\frac {1}{24} \, d {\left (\frac {6 \, {\left (d^{2} x^{2} e^{c} - 2 \, d x e^{c} + 2 \, e^{c}\right )} a^{2} e^{\left (d x\right )}}{d^{3}} + \frac {6 \, {\left (d^{2} x^{2} + 2 \, d x + 2\right )} a^{2} e^{\left (-d x - c\right )}}{d^{3}} + \frac {8 \, {\left (d^{3} x^{3} e^{c} - 3 \, d^{2} x^{2} e^{c} + 6 \, d x e^{c} - 6 \, e^{c}\right )} a b e^{\left (d x\right )}}{d^{4}} + \frac {8 \, {\left (d^{3} x^{3} + 3 \, d^{2} x^{2} + 6 \, d x + 6\right )} a b e^{\left (-d x - c\right )}}{d^{4}} + \frac {3 \, {\left (d^{4} x^{4} e^{c} - 4 \, d^{3} x^{3} e^{c} + 12 \, d^{2} x^{2} e^{c} - 24 \, d x e^{c} + 24 \, e^{c}\right )} b^{2} e^{\left (d x\right )}}{d^{5}} + \frac {3 \, {\left (d^{4} x^{4} + 4 \, d^{3} x^{3} + 12 \, d^{2} x^{2} + 24 \, d x + 24\right )} b^{2} e^{\left (-d x - c\right )}}{d^{5}}\right )} + \frac {1}{12} \, {\left (3 \, b^{2} x^{4} + 8 \, a b x^{3} + 6 \, a^{2} x^{2}\right )} \cosh \left (d x + c\right ) \]
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Time = 0.28 (sec) , antiderivative size = 171, normalized size of antiderivative = 1.28 \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=\frac {{\left (b^{2} d^{3} x^{3} + 2 \, a b d^{3} x^{2} + a^{2} d^{3} x - 3 \, b^{2} d^{2} x^{2} - 4 \, a b d^{2} x - a^{2} d^{2} + 6 \, b^{2} d x + 4 \, a b d - 6 \, b^{2}\right )} e^{\left (d x + c\right )}}{2 \, d^{4}} - \frac {{\left (b^{2} d^{3} x^{3} + 2 \, a b d^{3} x^{2} + a^{2} d^{3} x + 3 \, b^{2} d^{2} x^{2} + 4 \, a b d^{2} x + a^{2} d^{2} + 6 \, b^{2} d x + 4 \, a b d + 6 \, b^{2}\right )} e^{\left (-d x - c\right )}}{2 \, d^{4}} \]
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Time = 1.83 (sec) , antiderivative size = 125, normalized size of antiderivative = 0.93 \[ \int x (a+b x)^2 \cosh (c+d x) \, dx=\frac {b^2\,x^3\,\mathrm {sinh}\left (c+d\,x\right )}{d}-\frac {3\,b^2\,x^2\,\mathrm {cosh}\left (c+d\,x\right )}{d^2}-\frac {\mathrm {cosh}\left (c+d\,x\right )\,\left (a^2\,d^2+6\,b^2\right )}{d^4}+\frac {4\,a\,b\,\mathrm {sinh}\left (c+d\,x\right )}{d^3}+\frac {x\,\mathrm {sinh}\left (c+d\,x\right )\,\left (a^2\,d^2+6\,b^2\right )}{d^3}+\frac {2\,a\,b\,x^2\,\mathrm {sinh}\left (c+d\,x\right )}{d}-\frac {4\,a\,b\,x\,\mathrm {cosh}\left (c+d\,x\right )}{d^2} \]
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