Optimal. Leaf size=86 \[ \frac{(1-a x)^{-n} (a x+1)^n \, _2F_1\left (1,-n;1-n;\frac{1-a x}{a x+1}\right )}{n}-\frac{2^n (1-a x)^{-n} \, _2F_1\left (-n,-n;1-n;\frac{1}{2} (1-a x)\right )}{n} \]
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Rubi [A] time = 0.0296242, antiderivative size = 86, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 3, integrand size = 21, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.143, Rules used = {105, 69, 131} \[ \frac{(1-a x)^{-n} (a x+1)^n \, _2F_1\left (1,-n;1-n;\frac{1-a x}{a x+1}\right )}{n}-\frac{2^n (1-a x)^{-n} \, _2F_1\left (-n,-n;1-n;\frac{1}{2} (1-a x)\right )}{n} \]
Antiderivative was successfully verified.
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Rule 105
Rule 69
Rule 131
Rubi steps
\begin{align*} \int \frac{(1-a x)^{-n} (1+a x)^n}{x} \, dx &=-\left (a \int (1-a x)^{-1-n} (1+a x)^n \, dx\right )+\int \frac{(1-a x)^{-1-n} (1+a x)^n}{x} \, dx\\ &=\frac{(1-a x)^{-n} (1+a x)^n \, _2F_1\left (1,-n;1-n;\frac{1-a x}{1+a x}\right )}{n}-\frac{2^n (1-a x)^{-n} \, _2F_1\left (-n,-n;1-n;\frac{1}{2} (1-a x)\right )}{n}\\ \end{align*}
Mathematica [A] time = 0.0237632, size = 74, normalized size = 0.86 \[ \frac{(1-a x)^{-n} \left ((a x+1)^n \, _2F_1\left (1,-n;1-n;\frac{1-a x}{a x+1}\right )-2^n \, _2F_1\left (-n,-n;1-n;\frac{1}{2} (1-a x)\right )\right )}{n} \]
Antiderivative was successfully verified.
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Maple [F] time = 0.046, size = 0, normalized size = 0. \begin{align*} \int{\frac{ \left ( ax+1 \right ) ^{n}}{x \left ( -ax+1 \right ) ^{n}}}\, 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 \frac{{\left (a x + 1\right )}^{n}}{{\left (-a x + 1\right )}^{n} x}\,{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 (\frac{{\left (a x + 1\right )}^{n}}{{\left (-a x + 1\right )}^{n} x}, 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*} \int \frac{\left (- a x + 1\right )^{- n} \left (a x + 1\right )^{n}}{x}\, dx \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 \frac{{\left (a x + 1\right )}^{n}}{{\left (-a x + 1\right )}^{n} x}\,{d x} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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