Optimal. Leaf size=122 \[ -\frac {(2 c d-b e) \tanh ^{-1}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )}{\sqrt {b^2-4 a c} \left (c d^2-b d e+a e^2\right )}+\frac {e \log (d+e x)}{c d^2-b d e+a e^2}-\frac {e \log \left (a+b x+c x^2\right )}{2 \left (c d^2-b d e+a e^2\right )} \]
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Rubi [A]
time = 0.06, antiderivative size = 122, normalized size of antiderivative = 1.00, number of steps
used = 6, number of rules used = 6, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {719, 31, 648,
632, 212, 642} \begin {gather*} -\frac {(2 c d-b e) \tanh ^{-1}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )}{\sqrt {b^2-4 a c} \left (a e^2-b d e+c d^2\right )}-\frac {e \log \left (a+b x+c x^2\right )}{2 \left (a e^2-b d e+c d^2\right )}+\frac {e \log (d+e x)}{a e^2-b d e+c d^2} \end {gather*}
Antiderivative was successfully verified.
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Rule 31
Rule 212
Rule 632
Rule 642
Rule 648
Rule 719
Rubi steps
\begin {align*} \int \frac {1}{(d+e x) \left (a+b x+c x^2\right )} \, dx &=\frac {\int \frac {c d-b e-c e x}{a+b x+c x^2} \, dx}{c d^2-b d e+a e^2}+\frac {e^2 \int \frac {1}{d+e x} \, dx}{c d^2-b d e+a e^2}\\ &=\frac {e \log (d+e x)}{c d^2-b d e+a e^2}-\frac {e \int \frac {b+2 c x}{a+b x+c x^2} \, dx}{2 \left (c d^2-b d e+a e^2\right )}+\frac {(2 c d-b e) \int \frac {1}{a+b x+c x^2} \, dx}{2 \left (c d^2-b d e+a e^2\right )}\\ &=\frac {e \log (d+e x)}{c d^2-b d e+a e^2}-\frac {e \log \left (a+b x+c x^2\right )}{2 \left (c d^2-b d e+a e^2\right )}-\frac {(2 c d-b e) \text {Subst}\left (\int \frac {1}{b^2-4 a c-x^2} \, dx,x,b+2 c x\right )}{c d^2-b d e+a e^2}\\ &=-\frac {(2 c d-b e) \tanh ^{-1}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )}{\sqrt {b^2-4 a c} \left (c d^2-b d e+a e^2\right )}+\frac {e \log (d+e x)}{c d^2-b d e+a e^2}-\frac {e \log \left (a+b x+c x^2\right )}{2 \left (c d^2-b d e+a e^2\right )}\\ \end {align*}
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Mathematica [A]
time = 0.05, size = 105, normalized size = 0.86 \begin {gather*} \frac {(-4 c d+2 b e) \tan ^{-1}\left (\frac {b+2 c x}{\sqrt {-b^2+4 a c}}\right )+\sqrt {-b^2+4 a c} e (-2 \log (d+e x)+\log (a+x (b+c x)))}{2 \sqrt {-b^2+4 a c} \left (-c d^2+e (b d-a e)\right )} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.92, size = 104, normalized size = 0.85
method | result | size |
default | \(\frac {-\frac {e \ln \left (c \,x^{2}+b x +a \right )}{2}+\frac {2 \left (-\frac {b e}{2}+c d \right ) \arctan \left (\frac {2 c x +b}{\sqrt {4 a c -b^{2}}}\right )}{\sqrt {4 a c -b^{2}}}}{e^{2} a -b d e +c \,d^{2}}+\frac {e \ln \left (e x +d \right )}{e^{2} a -b d e +c \,d^{2}}\) | \(104\) |
risch | \(\text {Expression too large to display}\) | \(2835\) |
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 = 3.24, size = 313, normalized size = 2.57 \begin {gather*} \left [-\frac {{\left (b^{2} - 4 \, a c\right )} e \log \left (c x^{2} + b x + a\right ) - 2 \, {\left (b^{2} - 4 \, a c\right )} e \log \left (x e + d\right ) + \sqrt {b^{2} - 4 \, a c} {\left (2 \, c d - b e\right )} \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 )}{2 \, {\left ({\left (b^{2} c - 4 \, a c^{2}\right )} d^{2} - {\left (b^{3} - 4 \, a b c\right )} d e + {\left (a b^{2} - 4 \, a^{2} c\right )} e^{2}\right )}}, -\frac {{\left (b^{2} - 4 \, a c\right )} e \log \left (c x^{2} + b x + a\right ) - 2 \, {\left (b^{2} - 4 \, a c\right )} e \log \left (x e + d\right ) + 2 \, \sqrt {-b^{2} + 4 \, a c} {\left (2 \, c d - b e\right )} \arctan \left (-\frac {\sqrt {-b^{2} + 4 \, a c} {\left (2 \, c x + b\right )}}{b^{2} - 4 \, a c}\right )}{2 \, {\left ({\left (b^{2} c - 4 \, a c^{2}\right )} d^{2} - {\left (b^{3} - 4 \, a b c\right )} d e + {\left (a b^{2} - 4 \, a^{2} c\right )} e^{2}\right )}}\right ] \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F(-1)] Timed out
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Timed out} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 1.23, size = 126, normalized size = 1.03 \begin {gather*} -\frac {e \log \left (c x^{2} + b x + a\right )}{2 \, {\left (c d^{2} - b d e + a e^{2}\right )}} + \frac {e^{2} \log \left ({\left | x e + d \right |}\right )}{c d^{2} e - b d e^{2} + a e^{3}} + \frac {{\left (2 \, c d - b e\right )} \arctan \left (\frac {2 \, c x + b}{\sqrt {-b^{2} + 4 \, a c}}\right )}{{\left (c d^{2} - b d e + a e^{2}\right )} \sqrt {-b^{2} + 4 \, a c}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.98, size = 122, normalized size = 1.00 \begin {gather*} \frac {e\,\ln \left (\frac {{\left (d+e\,x\right )}^2}{c\,x^2+b\,x+a}\right )}{2\,c\,d^2-2\,b\,d\,e+2\,a\,e^2}-\frac {\ln \left (\frac {b+2\,c\,x-\sqrt {b^2-4\,a\,c}}{b+2\,c\,x+\sqrt {b^2-4\,a\,c}}\right )\,\left (b\,e-2\,c\,d\right )}{\sqrt {b^2-4\,a\,c}\,\left (2\,c\,d^2-2\,b\,d\,e+2\,a\,e^2\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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