Optimal. Leaf size=321 \[ \frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (-\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{a}+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}-\frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{a}+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}+\frac{\sqrt [4]{a} \left (\sqrt{a} f+\sqrt{b} d\right ) \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}\right )}{2 \sqrt{2} b^{7/4}}-\frac{\sqrt [4]{a} \left (\sqrt{a} f+\sqrt{b} d\right ) \tan ^{-1}\left (\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}+1\right )}{2 \sqrt{2} b^{7/4}}-\frac{\sqrt{a} e \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )}{2 b^{3/2}}+\frac{c \log \left (a+b x^4\right )}{4 b}+\frac{d x}{b}+\frac{e x^2}{2 b}+\frac{f x^3}{3 b} \]
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Rubi [A] time = 0.333813, antiderivative size = 321, normalized size of antiderivative = 1., number of steps used = 18, number of rules used = 13, integrand size = 28, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.464, Rules used = {1831, 1252, 774, 635, 205, 260, 1280, 1168, 1162, 617, 204, 1165, 628} \[ \frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (-\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{a}+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}-\frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{a}+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}+\frac{\sqrt [4]{a} \left (\sqrt{a} f+\sqrt{b} d\right ) \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}\right )}{2 \sqrt{2} b^{7/4}}-\frac{\sqrt [4]{a} \left (\sqrt{a} f+\sqrt{b} d\right ) \tan ^{-1}\left (\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}+1\right )}{2 \sqrt{2} b^{7/4}}-\frac{\sqrt{a} e \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )}{2 b^{3/2}}+\frac{c \log \left (a+b x^4\right )}{4 b}+\frac{d x}{b}+\frac{e x^2}{2 b}+\frac{f x^3}{3 b} \]
Antiderivative was successfully verified.
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Rule 1831
Rule 1252
Rule 774
Rule 635
Rule 205
Rule 260
Rule 1280
Rule 1168
Rule 1162
Rule 617
Rule 204
Rule 1165
Rule 628
Rubi steps
\begin{align*} \int \frac{x^3 \left (c+d x+e x^2+f x^3\right )}{a+b x^4} \, dx &=\int \left (\frac{x^3 \left (c+e x^2\right )}{a+b x^4}+\frac{x^4 \left (d+f x^2\right )}{a+b x^4}\right ) \, dx\\ &=\int \frac{x^3 \left (c+e x^2\right )}{a+b x^4} \, dx+\int \frac{x^4 \left (d+f x^2\right )}{a+b x^4} \, dx\\ &=\frac{f x^3}{3 b}+\frac{1}{2} \operatorname{Subst}\left (\int \frac{x (c+e x)}{a+b x^2} \, dx,x,x^2\right )-\frac{\int \frac{x^2 \left (3 a f-3 b d x^2\right )}{a+b x^4} \, dx}{3 b}\\ &=\frac{d x}{b}+\frac{e x^2}{2 b}+\frac{f x^3}{3 b}+\frac{\int \frac{-3 a b d-3 a b f x^2}{a+b x^4} \, dx}{3 b^2}+\frac{\operatorname{Subst}\left (\int \frac{-a e+b c x}{a+b x^2} \, dx,x,x^2\right )}{2 b}\\ &=\frac{d x}{b}+\frac{e x^2}{2 b}+\frac{f x^3}{3 b}+\frac{1}{2} c \operatorname{Subst}\left (\int \frac{x}{a+b x^2} \, dx,x,x^2\right )-\frac{(a e) \operatorname{Subst}\left (\int \frac{1}{a+b x^2} \, dx,x,x^2\right )}{2 b}-\frac{\left (\sqrt{a} \left (\sqrt{b} d-\sqrt{a} f\right )\right ) \int \frac{\sqrt{a} \sqrt{b}-b x^2}{a+b x^4} \, dx}{2 b^2}-\frac{\left (\sqrt{a} \left (\sqrt{b} d+\sqrt{a} f\right )\right ) \int \frac{\sqrt{a} \sqrt{b}+b x^2}{a+b x^4} \, dx}{2 b^2}\\ &=\frac{d x}{b}+\frac{e x^2}{2 b}+\frac{f x^3}{3 b}-\frac{\sqrt{a} e \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )}{2 b^{3/2}}+\frac{c \log \left (a+b x^4\right )}{4 b}+\frac{\left (\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right )\right ) \int \frac{\frac{\sqrt{2} \sqrt [4]{a}}{\sqrt [4]{b}}+2 x}{-\frac{\sqrt{a}}{\sqrt{b}}-\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{b}}-x^2} \, dx}{4 \sqrt{2} b^{7/4}}+\frac{\left (\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right )\right ) \int \frac{\frac{\sqrt{2} \sqrt [4]{a}}{\sqrt [4]{b}}-2 x}{-\frac{\sqrt{a}}{\sqrt{b}}+\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{b}}-x^2} \, dx}{4 \sqrt{2} b^{7/4}}-\frac{\left (\sqrt{a} \left (\sqrt{b} d+\sqrt{a} f\right )\right ) \int \frac{1}{\frac{\sqrt{a}}{\sqrt{b}}-\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{b}}+x^2} \, dx}{4 b^2}-\frac{\left (\sqrt{a} \left (\sqrt{b} d+\sqrt{a} f\right )\right ) \int \frac{1}{\frac{\sqrt{a}}{\sqrt{b}}+\frac{\sqrt{2} \sqrt [4]{a} x}{\sqrt [4]{b}}+x^2} \, dx}{4 b^2}\\ &=\frac{d x}{b}+\frac{e x^2}{2 b}+\frac{f x^3}{3 b}-\frac{\sqrt{a} e \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )}{2 b^{3/2}}+\frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (\sqrt{a}-\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}-\frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (\sqrt{a}+\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}+\frac{c \log \left (a+b x^4\right )}{4 b}-\frac{\left (\sqrt [4]{a} \left (\sqrt{b} d+\sqrt{a} f\right )\right ) \operatorname{Subst}\left (\int \frac{1}{-1-x^2} \, dx,x,1-\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}\right )}{2 \sqrt{2} b^{7/4}}+\frac{\left (\sqrt [4]{a} \left (\sqrt{b} d+\sqrt{a} f\right )\right ) \operatorname{Subst}\left (\int \frac{1}{-1-x^2} \, dx,x,1+\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}\right )}{2 \sqrt{2} b^{7/4}}\\ &=\frac{d x}{b}+\frac{e x^2}{2 b}+\frac{f x^3}{3 b}-\frac{\sqrt{a} e \tan ^{-1}\left (\frac{\sqrt{b} x^2}{\sqrt{a}}\right )}{2 b^{3/2}}+\frac{\sqrt [4]{a} \left (\sqrt{b} d+\sqrt{a} f\right ) \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}\right )}{2 \sqrt{2} b^{7/4}}-\frac{\sqrt [4]{a} \left (\sqrt{b} d+\sqrt{a} f\right ) \tan ^{-1}\left (1+\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}\right )}{2 \sqrt{2} b^{7/4}}+\frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (\sqrt{a}-\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}-\frac{\sqrt [4]{a} \left (\sqrt{b} d-\sqrt{a} f\right ) \log \left (\sqrt{a}+\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{b} x^2\right )}{4 \sqrt{2} b^{7/4}}+\frac{c \log \left (a+b x^4\right )}{4 b}\\ \end{align*}
Mathematica [A] time = 0.173454, size = 311, normalized size = 0.97 \[ \frac{-3 \sqrt{2} \left (a^{3/4} f-\sqrt [4]{a} \sqrt{b} d\right ) \log \left (-\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{a}+\sqrt{b} x^2\right )+3 \sqrt{2} \left (a^{3/4} f-\sqrt [4]{a} \sqrt{b} d\right ) \log \left (\sqrt{2} \sqrt [4]{a} \sqrt [4]{b} x+\sqrt{a}+\sqrt{b} x^2\right )+6 b^{3/4} c \log \left (a+b x^4\right )+6 \sqrt [4]{a} \tan ^{-1}\left (1-\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}\right ) \left (2 \sqrt [4]{a} \sqrt [4]{b} e+\sqrt{2} \sqrt{a} f+\sqrt{2} \sqrt{b} d\right )-6 \sqrt [4]{a} \tan ^{-1}\left (\frac{\sqrt{2} \sqrt [4]{b} x}{\sqrt [4]{a}}+1\right ) \left (-2 \sqrt [4]{a} \sqrt [4]{b} e+\sqrt{2} \sqrt{a} f+\sqrt{2} \sqrt{b} d\right )+24 b^{3/4} d x+12 b^{3/4} e x^2+8 b^{3/4} f x^3}{24 b^{7/4}} \]
Antiderivative was successfully verified.
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Maple [A] time = 0.004, size = 325, normalized size = 1. \begin{align*}{\frac{f{x}^{3}}{3\,b}}+{\frac{e{x}^{2}}{2\,b}}+{\frac{dx}{b}}-{\frac{d\sqrt{2}}{4\,b}\sqrt [4]{{\frac{a}{b}}}\arctan \left ({x\sqrt{2}{\frac{1}{\sqrt [4]{{\frac{a}{b}}}}}}-1 \right ) }-{\frac{d\sqrt{2}}{8\,b}\sqrt [4]{{\frac{a}{b}}}\ln \left ({ \left ({x}^{2}+\sqrt [4]{{\frac{a}{b}}}x\sqrt{2}+\sqrt{{\frac{a}{b}}} \right ) \left ({x}^{2}-\sqrt [4]{{\frac{a}{b}}}x\sqrt{2}+\sqrt{{\frac{a}{b}}} \right ) ^{-1}} \right ) }-{\frac{d\sqrt{2}}{4\,b}\sqrt [4]{{\frac{a}{b}}}\arctan \left ({x\sqrt{2}{\frac{1}{\sqrt [4]{{\frac{a}{b}}}}}}+1 \right ) }-{\frac{ae}{2\,b}\arctan \left ({x}^{2}\sqrt{{\frac{b}{a}}} \right ){\frac{1}{\sqrt{ab}}}}-{\frac{af\sqrt{2}}{8\,{b}^{2}}\ln \left ({ \left ({x}^{2}-\sqrt [4]{{\frac{a}{b}}}x\sqrt{2}+\sqrt{{\frac{a}{b}}} \right ) \left ({x}^{2}+\sqrt [4]{{\frac{a}{b}}}x\sqrt{2}+\sqrt{{\frac{a}{b}}} \right ) ^{-1}} \right ){\frac{1}{\sqrt [4]{{\frac{a}{b}}}}}}-{\frac{af\sqrt{2}}{4\,{b}^{2}}\arctan \left ({x\sqrt{2}{\frac{1}{\sqrt [4]{{\frac{a}{b}}}}}}+1 \right ){\frac{1}{\sqrt [4]{{\frac{a}{b}}}}}}-{\frac{af\sqrt{2}}{4\,{b}^{2}}\arctan \left ({x\sqrt{2}{\frac{1}{\sqrt [4]{{\frac{a}{b}}}}}}-1 \right ){\frac{1}{\sqrt [4]{{\frac{a}{b}}}}}}+{\frac{c\ln \left ( b{x}^{4}+a \right ) }{4\,b}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [F(-1)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] time = 12.1739, size = 886, normalized size = 2.76 \begin{align*} \operatorname{RootSum}{\left (256 t^{4} b^{7} - 256 t^{3} b^{6} c + t^{2} \left (64 a b^{4} d f + 32 a b^{4} e^{2} + 96 b^{5} c^{2}\right ) + t \left (- 16 a^{2} b^{2} e f^{2} - 32 a b^{3} c d f - 16 a b^{3} c e^{2} + 16 a b^{3} d^{2} e - 16 b^{4} c^{3}\right ) + a^{3} f^{4} + 4 a^{2} b c e f^{2} + 2 a^{2} b d^{2} f^{2} - 4 a^{2} b d e^{2} f + a^{2} b e^{4} + 4 a b^{2} c^{2} d f + 2 a b^{2} c^{2} e^{2} - 4 a b^{2} c d^{2} e + a b^{2} d^{4} + b^{3} c^{4}, \left ( t \mapsto t \log{\left (x + \frac{- 64 t^{3} a b^{5} f^{3} + 64 t^{3} b^{6} d^{2} f - 128 t^{3} b^{6} d e^{2} + 48 t^{2} a b^{4} c f^{3} + 48 t^{2} a b^{4} d e f^{2} - 32 t^{2} a b^{4} e^{3} f - 48 t^{2} b^{5} c d^{2} f + 96 t^{2} b^{5} c d e^{2} + 16 t^{2} b^{5} d^{3} e - 12 t a^{2} b^{2} d f^{4} - 12 t a^{2} b^{2} e^{2} f^{3} - 12 t a b^{3} c^{2} f^{3} - 24 t a b^{3} c d e f^{2} + 16 t a b^{3} c e^{3} f + 16 t a b^{3} d^{3} f^{2} - 36 t a b^{3} d^{2} e^{2} f - 8 t a b^{3} d e^{4} + 12 t b^{4} c^{2} d^{2} f - 24 t b^{4} c^{2} d e^{2} - 8 t b^{4} c d^{3} e - 4 t b^{4} d^{5} + 3 a^{3} e f^{5} + 3 a^{2} b c d f^{4} + 3 a^{2} b c e^{2} f^{3} + 5 a^{2} b d e^{3} f^{2} - 2 a^{2} b e^{5} f + a b^{2} c^{3} f^{3} + 3 a b^{2} c^{2} d e f^{2} - 2 a b^{2} c^{2} e^{3} f - 4 a b^{2} c d^{3} f^{2} + 9 a b^{2} c d^{2} e^{2} f + 2 a b^{2} c d e^{4} + 5 a b^{2} d^{4} e f - 5 a b^{2} d^{3} e^{3} - b^{3} c^{3} d^{2} f + 2 b^{3} c^{3} d e^{2} + b^{3} c^{2} d^{3} e + b^{3} c d^{5}}{a^{3} f^{6} - a^{2} b d^{2} f^{4} + 8 a^{2} b d e^{2} f^{3} - 4 a^{2} b e^{4} f^{2} - a b^{2} d^{4} f^{2} + 8 a b^{2} d^{3} e^{2} f - 4 a b^{2} d^{2} e^{4} + b^{3} d^{6}} \right )} \right )\right )} + \frac{d x}{b} + \frac{e x^{2}}{2 b} + \frac{f x^{3}}{3 b} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 1.10117, size = 416, normalized size = 1.3 \begin{align*} \frac{c \log \left ({\left | b x^{4} + a \right |}\right )}{4 \, b} + \frac{\sqrt{2}{\left (\sqrt{2} \sqrt{a b} b^{2} e - \left (a b^{3}\right )^{\frac{1}{4}} b^{2} d - \left (a b^{3}\right )^{\frac{3}{4}} f\right )} \arctan \left (\frac{\sqrt{2}{\left (2 \, x + \sqrt{2} \left (\frac{a}{b}\right )^{\frac{1}{4}}\right )}}{2 \, \left (\frac{a}{b}\right )^{\frac{1}{4}}}\right )}{4 \, b^{4}} + \frac{\sqrt{2}{\left (\sqrt{2} \sqrt{a b} b^{2} e - \left (a b^{3}\right )^{\frac{1}{4}} b^{2} d - \left (a b^{3}\right )^{\frac{3}{4}} f\right )} \arctan \left (\frac{\sqrt{2}{\left (2 \, x - \sqrt{2} \left (\frac{a}{b}\right )^{\frac{1}{4}}\right )}}{2 \, \left (\frac{a}{b}\right )^{\frac{1}{4}}}\right )}{4 \, b^{4}} - \frac{\sqrt{2}{\left (\left (a b^{3}\right )^{\frac{1}{4}} b^{2} d - \left (a b^{3}\right )^{\frac{3}{4}} f\right )} \log \left (x^{2} + \sqrt{2} x \left (\frac{a}{b}\right )^{\frac{1}{4}} + \sqrt{\frac{a}{b}}\right )}{8 \, b^{4}} + \frac{\sqrt{2}{\left (\left (a b^{3}\right )^{\frac{1}{4}} b^{2} d - \left (a b^{3}\right )^{\frac{3}{4}} f\right )} \log \left (x^{2} - \sqrt{2} x \left (\frac{a}{b}\right )^{\frac{1}{4}} + \sqrt{\frac{a}{b}}\right )}{8 \, b^{4}} + \frac{2 \, b^{2} f x^{3} + 3 \, b^{2} x^{2} e + 6 \, b^{2} d x}{6 \, b^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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