Optimal. Leaf size=72 \[ 2 \left (b^2-4 a c\right ) d^4 (b+2 c x)+\frac {2}{3} d^4 (b+2 c x)^3-2 \left (b^2-4 a c\right )^{3/2} d^4 \tanh ^{-1}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right ) \]
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Rubi [A]
time = 0.04, antiderivative size = 72, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 3, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.125, Rules used = {706, 632, 212}
\begin {gather*} 2 d^4 \left (b^2-4 a c\right ) (b+2 c x)-2 d^4 \left (b^2-4 a c\right )^{3/2} \tanh ^{-1}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )+\frac {2}{3} d^4 (b+2 c x)^3 \end {gather*}
Antiderivative was successfully verified.
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Rule 212
Rule 632
Rule 706
Rubi steps
\begin {align*} \int \frac {(b d+2 c d x)^4}{a+b x+c x^2} \, dx &=\frac {2}{3} d^4 (b+2 c x)^3+\left (\left (b^2-4 a c\right ) d^2\right ) \int \frac {(b d+2 c d x)^2}{a+b x+c x^2} \, dx\\ &=2 \left (b^2-4 a c\right ) d^4 (b+2 c x)+\frac {2}{3} d^4 (b+2 c x)^3+\left (\left (b^2-4 a c\right )^2 d^4\right ) \int \frac {1}{a+b x+c x^2} \, dx\\ &=2 \left (b^2-4 a c\right ) d^4 (b+2 c x)+\frac {2}{3} d^4 (b+2 c x)^3-\left (2 \left (b^2-4 a c\right )^2 d^4\right ) \text {Subst}\left (\int \frac {1}{b^2-4 a c-x^2} \, dx,x,b+2 c x\right )\\ &=2 \left (b^2-4 a c\right ) d^4 (b+2 c x)+\frac {2}{3} d^4 (b+2 c x)^3-2 \left (b^2-4 a c\right )^{3/2} d^4 \tanh ^{-1}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )\\ \end {align*}
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Mathematica [A]
time = 0.03, size = 72, normalized size = 1.00 \begin {gather*} d^4 \left (\frac {8}{3} c x \left (3 b^2+3 b c x+2 c \left (-3 a+c x^2\right )\right )+2 \left (-b^2+4 a c\right )^{3/2} \tan ^{-1}\left (\frac {b+2 c x}{\sqrt {-b^2+4 a c}}\right )\right ) \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.70, size = 90, normalized size = 1.25
method | result | size |
default | \(d^{4} \left (\frac {16 c^{3} x^{3}}{3}+8 b \,c^{2} x^{2}-16 a \,c^{2} x +8 b^{2} c x +\frac {2 \left (16 a^{2} c^{2}-8 a c \,b^{2}+b^{4}\right ) \arctan \left (\frac {2 c x +b}{\sqrt {4 a c -b^{2}}}\right )}{\sqrt {4 a c -b^{2}}}\right )\) | \(90\) |
risch | \(\frac {16 c^{3} d^{4} x^{3}}{3}+8 c^{2} d^{4} x^{2} b -16 c^{2} d^{4} a x +8 c \,d^{4} b^{2} x -\left (-4 a c +b^{2}\right )^{\frac {3}{2}} d^{4} \ln \left (2 \left (-4 a c +b^{2}\right )^{\frac {3}{2}} c x +\left (-4 a c +b^{2}\right )^{\frac {3}{2}} b +16 a^{2} c^{2}-8 a c \,b^{2}+b^{4}\right )+\left (-4 a c +b^{2}\right )^{\frac {3}{2}} d^{4} \ln \left (-2 \left (-4 a c +b^{2}\right )^{\frac {3}{2}} c x -\left (-4 a c +b^{2}\right )^{\frac {3}{2}} b +16 a^{2} c^{2}-8 a c \,b^{2}+b^{4}\right )\) | \(167\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: ValueError} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 1.65, size = 208, normalized size = 2.89 \begin {gather*} \left [\frac {16}{3} \, c^{3} d^{4} x^{3} + 8 \, b c^{2} d^{4} x^{2} - {\left (b^{2} - 4 \, a c\right )}^{\frac {3}{2}} d^{4} \log \left (\frac {2 \, c^{2} x^{2} + 2 \, b c x + b^{2} - 2 \, a c + \sqrt {b^{2} - 4 \, a c} {\left (2 \, c x + b\right )}}{c x^{2} + b x + a}\right ) + 8 \, {\left (b^{2} c - 2 \, a c^{2}\right )} d^{4} x, \frac {16}{3} \, c^{3} d^{4} x^{3} + 8 \, b c^{2} d^{4} x^{2} - 2 \, {\left (b^{2} - 4 \, a c\right )} \sqrt {-b^{2} + 4 \, a c} d^{4} \arctan \left (-\frac {\sqrt {-b^{2} + 4 \, a c} {\left (2 \, c x + b\right )}}{b^{2} - 4 \, a c}\right ) + 8 \, {\left (b^{2} c - 2 \, a c^{2}\right )} d^{4} x\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 204 vs.
\(2 (71) = 142\).
time = 10.62, size = 204, normalized size = 2.83 \begin {gather*} 8 b c^{2} d^{4} x^{2} + \frac {16 c^{3} d^{4} x^{3}}{3} - d^{4} \sqrt {- \left (4 a c - b^{2}\right )^{3}} \log {\left (x + \frac {4 a b c d^{4} - b^{3} d^{4} - d^{4} \sqrt {- \left (4 a c - b^{2}\right )^{3}}}{8 a c^{2} d^{4} - 2 b^{2} c d^{4}} \right )} + d^{4} \sqrt {- \left (4 a c - b^{2}\right )^{3}} \log {\left (x + \frac {4 a b c d^{4} - b^{3} d^{4} + d^{4} \sqrt {- \left (4 a c - b^{2}\right )^{3}}}{8 a c^{2} d^{4} - 2 b^{2} c d^{4}} \right )} + x \left (- 16 a c^{2} d^{4} + 8 b^{2} c d^{4}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.30, size = 115, normalized size = 1.60 \begin {gather*} \frac {2 \, {\left (b^{4} d^{4} - 8 \, a b^{2} c d^{4} + 16 \, a^{2} c^{2} d^{4}\right )} \arctan \left (\frac {2 \, c x + b}{\sqrt {-b^{2} + 4 \, a c}}\right )}{\sqrt {-b^{2} + 4 \, a c}} + \frac {8 \, {\left (2 \, c^{6} d^{4} x^{3} + 3 \, b c^{5} d^{4} x^{2} + 3 \, b^{2} c^{4} d^{4} x - 6 \, a c^{5} d^{4} x\right )}}{3 \, c^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.07, size = 133, normalized size = 1.85 \begin {gather*} \frac {16\,c^3\,d^4\,x^3}{3}-x\,\left (16\,a\,c^2\,d^4-8\,b^2\,c\,d^4\right )+2\,d^4\,\mathrm {atan}\left (\frac {b\,d^4\,{\left (4\,a\,c-b^2\right )}^{3/2}+2\,c\,d^4\,x\,{\left (4\,a\,c-b^2\right )}^{3/2}}{16\,a^2\,c^2\,d^4-8\,a\,b^2\,c\,d^4+b^4\,d^4}\right )\,{\left (4\,a\,c-b^2\right )}^{3/2}+8\,b\,c^2\,d^4\,x^2 \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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