Optimal. Leaf size=68 \[ -\frac{c^3 2^{\frac{n}{2}+1} (1-a x)^{4-\frac{n}{2}} \text{Hypergeometric2F1}\left (4-\frac{n}{2},-\frac{n}{2},5-\frac{n}{2},\frac{1}{2} (1-a x)\right )}{a (8-n)} \]
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Rubi [A] time = 0.0469197, antiderivative size = 68, normalized size of antiderivative = 1., number of steps used = 2, number of rules used = 2, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.111, Rules used = {6129, 69} \[ -\frac{c^3 2^{\frac{n}{2}+1} (1-a x)^{4-\frac{n}{2}} \, _2F_1\left (4-\frac{n}{2},-\frac{n}{2};5-\frac{n}{2};\frac{1}{2} (1-a x)\right )}{a (8-n)} \]
Antiderivative was successfully verified.
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Rule 6129
Rule 69
Rubi steps
\begin{align*} \int e^{n \tanh ^{-1}(a x)} (c-a c x)^3 \, dx &=c^3 \int (1-a x)^{3-\frac{n}{2}} (1+a x)^{n/2} \, dx\\ &=-\frac{2^{1+\frac{n}{2}} c^3 (1-a x)^{4-\frac{n}{2}} \, _2F_1\left (4-\frac{n}{2},-\frac{n}{2};5-\frac{n}{2};\frac{1}{2} (1-a x)\right )}{a (8-n)}\\ \end{align*}
Mathematica [A] time = 0.0196658, size = 65, normalized size = 0.96 \[ \frac{c^3 2^{\frac{n}{2}+1} (1-a x)^{4-\frac{n}{2}} \text{Hypergeometric2F1}\left (4-\frac{n}{2},-\frac{n}{2},5-\frac{n}{2},\frac{1}{2} (1-a x)\right )}{a (n-8)} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.148, size = 0, normalized size = 0. \begin{align*} \int{{\rm e}^{n{\it Artanh} \left ( ax \right ) }} \left ( -acx+c \right ) ^{3}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F] time = 0., size = 0, normalized size = 0. \begin{align*} -\int{\left (a c x - c\right )}^{3} \left (\frac{a x + 1}{a x - 1}\right )^{\frac{1}{2} \, n}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F] time = 0., size = 0, normalized size = 0. \begin{align*}{\rm integral}\left (-{\left (a^{3} c^{3} x^{3} - 3 \, a^{2} c^{3} x^{2} + 3 \, a c^{3} x - c^{3}\right )} \left (\frac{a x + 1}{a x - 1}\right )^{\frac{1}{2} \, n}, x\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} - c^{3} \left (\int 3 a x e^{n \operatorname{atanh}{\left (a x \right )}}\, dx + \int - 3 a^{2} x^{2} e^{n \operatorname{atanh}{\left (a x \right )}}\, dx + \int a^{3} x^{3} e^{n \operatorname{atanh}{\left (a x \right )}}\, dx + \int - e^{n \operatorname{atanh}{\left (a x \right )}}\, dx\right ) \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int -{\left (a c x - c\right )}^{3} \left (\frac{a x + 1}{a x - 1}\right )^{\frac{1}{2} \, n}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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