Optimal. Leaf size=77 \[ \frac {2 d (b c-a d) x}{b^3}+\frac {d^2 x^2}{2 b^2}+\frac {a (b c-a d)^2}{b^4 (a+b x)}+\frac {(b c-3 a d) (b c-a d) \log (a+b x)}{b^4} \]
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Rubi [A]
time = 0.05, antiderivative size = 77, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 1, integrand size = 16, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.062, Rules used = {78}
\begin {gather*} \frac {a (b c-a d)^2}{b^4 (a+b x)}+\frac {(b c-3 a d) (b c-a d) \log (a+b x)}{b^4}+\frac {2 d x (b c-a d)}{b^3}+\frac {d^2 x^2}{2 b^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 78
Rubi steps
\begin {align*} \int \frac {x (c+d x)^2}{(a+b x)^2} \, dx &=\int \left (\frac {2 d (b c-a d)}{b^3}+\frac {d^2 x}{b^2}-\frac {a (-b c+a d)^2}{b^3 (a+b x)^2}+\frac {(b c-3 a d) (b c-a d)}{b^3 (a+b x)}\right ) \, dx\\ &=\frac {2 d (b c-a d) x}{b^3}+\frac {d^2 x^2}{2 b^2}+\frac {a (b c-a d)^2}{b^4 (a+b x)}+\frac {(b c-3 a d) (b c-a d) \log (a+b x)}{b^4}\\ \end {align*}
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Mathematica [A]
time = 0.04, size = 81, normalized size = 1.05 \begin {gather*} \frac {4 b d (b c-a d) x+b^2 d^2 x^2+\frac {2 a (b c-a d)^2}{a+b x}+2 \left (b^2 c^2-4 a b c d+3 a^2 d^2\right ) \log (a+b x)}{2 b^4} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.06, size = 91, normalized size = 1.18
method | result | size |
default | \(-\frac {d \left (-\frac {1}{2} b d \,x^{2}+2 a d x -2 b c x \right )}{b^{3}}+\frac {\left (3 a^{2} d^{2}-4 a b c d +b^{2} c^{2}\right ) \ln \left (b x +a \right )}{b^{4}}+\frac {a \left (a^{2} d^{2}-2 a b c d +b^{2} c^{2}\right )}{b^{4} \left (b x +a \right )}\) | \(91\) |
norman | \(\frac {\frac {d^{2} x^{3}}{2 b}-\frac {d \left (3 a d -4 b c \right ) x^{2}}{2 b^{2}}-\frac {\left (3 a^{3} d^{2}-4 a^{2} b c d +a \,b^{2} c^{2}\right ) x}{b^{3} a}}{b x +a}+\frac {\left (3 a^{2} d^{2}-4 a b c d +b^{2} c^{2}\right ) \ln \left (b x +a \right )}{b^{4}}\) | \(106\) |
risch | \(\frac {d^{2} x^{2}}{2 b^{2}}-\frac {2 d^{2} a x}{b^{3}}+\frac {2 d c x}{b^{2}}+\frac {3 \ln \left (b x +a \right ) a^{2} d^{2}}{b^{4}}-\frac {4 \ln \left (b x +a \right ) a c d}{b^{3}}+\frac {\ln \left (b x +a \right ) c^{2}}{b^{2}}+\frac {a^{3} d^{2}}{b^{4} \left (b x +a \right )}-\frac {2 a^{2} c d}{b^{3} \left (b x +a \right )}+\frac {a \,c^{2}}{b^{2} \left (b x +a \right )}\) | \(124\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.32, size = 99, normalized size = 1.29 \begin {gather*} \frac {a b^{2} c^{2} - 2 \, a^{2} b c d + a^{3} d^{2}}{b^{5} x + a b^{4}} + \frac {b d^{2} x^{2} + 4 \, {\left (b c d - a d^{2}\right )} x}{2 \, b^{3}} + \frac {{\left (b^{2} c^{2} - 4 \, a b c d + 3 \, a^{2} d^{2}\right )} \log \left (b x + a\right )}{b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 152 vs.
\(2 (75) = 150\).
time = 1.19, size = 152, normalized size = 1.97 \begin {gather*} \frac {b^{3} d^{2} x^{3} + 2 \, a b^{2} c^{2} - 4 \, a^{2} b c d + 2 \, a^{3} d^{2} + {\left (4 \, b^{3} c d - 3 \, a b^{2} d^{2}\right )} x^{2} + 4 \, {\left (a b^{2} c d - a^{2} b d^{2}\right )} x + 2 \, {\left (a b^{2} c^{2} - 4 \, a^{2} b c d + 3 \, a^{3} d^{2} + {\left (b^{3} c^{2} - 4 \, a b^{2} c d + 3 \, a^{2} b d^{2}\right )} x\right )} \log \left (b x + a\right )}{2 \, {\left (b^{5} x + a b^{4}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.26, size = 92, normalized size = 1.19 \begin {gather*} x \left (- \frac {2 a d^{2}}{b^{3}} + \frac {2 c d}{b^{2}}\right ) + \frac {a^{3} d^{2} - 2 a^{2} b c d + a b^{2} c^{2}}{a b^{4} + b^{5} x} + \frac {d^{2} x^{2}}{2 b^{2}} + \frac {\left (a d - b c\right ) \left (3 a d - b c\right ) \log {\left (a + b x \right )}}{b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.65, size = 149, normalized size = 1.94 \begin {gather*} \frac {\frac {{\left (d^{2} + \frac {2 \, {\left (2 \, b^{2} c d - 3 \, a b d^{2}\right )}}{{\left (b x + a\right )} b}\right )} {\left (b x + a\right )}^{2}}{b^{3}} - \frac {2 \, {\left (b^{2} c^{2} - 4 \, a b c d + 3 \, a^{2} d^{2}\right )} \log \left (\frac {{\left | b x + a \right |}}{{\left (b x + a\right )}^{2} {\left | b \right |}}\right )}{b^{3}} + \frac {2 \, {\left (\frac {a b^{4} c^{2}}{b x + a} - \frac {2 \, a^{2} b^{3} c d}{b x + a} + \frac {a^{3} b^{2} d^{2}}{b x + a}\right )}}{b^{5}}}{2 \, b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.07, size = 105, normalized size = 1.36 \begin {gather*} \frac {\ln \left (a+b\,x\right )\,\left (3\,a^2\,d^2-4\,a\,b\,c\,d+b^2\,c^2\right )}{b^4}-x\,\left (\frac {2\,a\,d^2}{b^3}-\frac {2\,c\,d}{b^2}\right )+\frac {d^2\,x^2}{2\,b^2}+\frac {a^3\,d^2-2\,a^2\,b\,c\,d+a\,b^2\,c^2}{b\,\left (x\,b^4+a\,b^3\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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