Optimal. Leaf size=144 \[ \frac {\sqrt {2} \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{a} x \sqrt [4]{a x^4+b x}}{\sqrt {a x^4+b x}-\sqrt {a} x^2}\right )}{3 \sqrt [4]{a} b}+\frac {\sqrt {2} \tanh ^{-1}\left (\frac {\frac {\sqrt {a x^4+b x}}{\sqrt {2} \sqrt [4]{a}}+\frac {\sqrt [4]{a} x^2}{\sqrt {2}}}{x \sqrt [4]{a x^4+b x}}\right )}{3 \sqrt [4]{a} b} \]
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Rubi [B] time = 0.40, antiderivative size = 351, normalized size of antiderivative = 2.44, number of steps used = 13, number of rules used = 10, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.417, Rules used = {2056, 466, 465, 377, 211, 1165, 628, 1162, 617, 204} \begin {gather*} -\frac {\sqrt [4]{x} \sqrt [4]{a x^3+b} \log \left (\frac {\sqrt {a} x^{3/2}}{\sqrt {a x^3+b}}-\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{a x^3+b}}+1\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{a x^4+b x}}+\frac {\sqrt [4]{x} \sqrt [4]{a x^3+b} \log \left (\frac {\sqrt {a} x^{3/2}}{\sqrt {a x^3+b}}+\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{a x^3+b}}+1\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{a x^4+b x}}-\frac {\sqrt {2} \sqrt [4]{x} \sqrt [4]{a x^3+b} \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{a x^3+b}}\right )}{3 \sqrt [4]{a} b \sqrt [4]{a x^4+b x}}+\frac {\sqrt {2} \sqrt [4]{x} \sqrt [4]{a x^3+b} \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{a x^3+b}}+1\right )}{3 \sqrt [4]{a} b \sqrt [4]{a x^4+b x}} \end {gather*}
Antiderivative was successfully verified.
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Rule 204
Rule 211
Rule 377
Rule 465
Rule 466
Rule 617
Rule 628
Rule 1162
Rule 1165
Rule 2056
Rubi steps
\begin {align*} \int \frac {1}{\left (b+2 a x^3\right ) \sqrt [4]{b x+a x^4}} \, dx &=\frac {\left (\sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \int \frac {1}{\sqrt [4]{x} \sqrt [4]{b+a x^3} \left (b+2 a x^3\right )} \, dx}{\sqrt [4]{b x+a x^4}}\\ &=\frac {\left (4 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {x^2}{\sqrt [4]{b+a x^{12}} \left (b+2 a x^{12}\right )} \, dx,x,\sqrt [4]{x}\right )}{\sqrt [4]{b x+a x^4}}\\ &=\frac {\left (4 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1}{\sqrt [4]{b+a x^4} \left (b+2 a x^4\right )} \, dx,x,x^{3/4}\right )}{3 \sqrt [4]{b x+a x^4}}\\ &=\frac {\left (4 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1}{b+a b x^4} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{b x+a x^4}}\\ &=\frac {\left (2 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1-\sqrt {a} x^2}{b+a b x^4} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{b x+a x^4}}+\frac {\left (2 \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1+\sqrt {a} x^2}{b+a b x^4} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{b x+a x^4}}\\ &=\frac {\left (\sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1}{\frac {1}{\sqrt {a}}-\frac {\sqrt {2} x}{\sqrt [4]{a}}+x^2} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {a} b \sqrt [4]{b x+a x^4}}+\frac {\left (\sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1}{\frac {1}{\sqrt {a}}+\frac {\sqrt {2} x}{\sqrt [4]{a}}+x^2} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {a} b \sqrt [4]{b x+a x^4}}-\frac {\left (\sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {\frac {\sqrt {2}}{\sqrt [4]{a}}+2 x}{-\frac {1}{\sqrt {a}}-\frac {\sqrt {2} x}{\sqrt [4]{a}}-x^2} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}-\frac {\left (\sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {\frac {\sqrt {2}}{\sqrt [4]{a}}-2 x}{-\frac {1}{\sqrt {a}}+\frac {\sqrt {2} x}{\sqrt [4]{a}}-x^2} \, dx,x,\frac {x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}\\ &=-\frac {\sqrt [4]{x} \sqrt [4]{b+a x^3} \log \left (1+\frac {\sqrt {a} x^{3/2}}{\sqrt {b+a x^3}}-\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}+\frac {\sqrt [4]{x} \sqrt [4]{b+a x^3} \log \left (1+\frac {\sqrt {a} x^{3/2}}{\sqrt {b+a x^3}}+\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}+\frac {\left (\sqrt {2} \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1-\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}-\frac {\left (\sqrt {2} \sqrt [4]{x} \sqrt [4]{b+a x^3}\right ) \operatorname {Subst}\left (\int \frac {1}{-1-x^2} \, dx,x,1+\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}\\ &=-\frac {\sqrt {2} \sqrt [4]{x} \sqrt [4]{b+a x^3} \tan ^{-1}\left (1-\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}+\frac {\sqrt {2} \sqrt [4]{x} \sqrt [4]{b+a x^3} \tan ^{-1}\left (1+\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}-\frac {\sqrt [4]{x} \sqrt [4]{b+a x^3} \log \left (1+\frac {\sqrt {a} x^{3/2}}{\sqrt {b+a x^3}}-\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}+\frac {\sqrt [4]{x} \sqrt [4]{b+a x^3} \log \left (1+\frac {\sqrt {a} x^{3/2}}{\sqrt {b+a x^3}}+\frac {\sqrt {2} \sqrt [4]{a} x^{3/4}}{\sqrt [4]{b+a x^3}}\right )}{3 \sqrt {2} \sqrt [4]{a} b \sqrt [4]{b x+a x^4}}\\ \end {align*}
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Mathematica [C] time = 0.04, size = 75, normalized size = 0.52 \begin {gather*} \frac {4 x \sqrt [4]{\frac {a x^3}{b}+1} \, _2F_1\left (\frac {1}{4},\frac {1}{4};\frac {5}{4};\frac {a x^3}{2 a x^3+b}\right )}{3 b \sqrt [4]{x \left (a x^3+b\right )} \sqrt [4]{\frac {2 a x^3}{b}+1}} \end {gather*}
Warning: Unable to verify antiderivative.
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IntegrateAlgebraic [A] time = 0.46, size = 144, normalized size = 1.00 \begin {gather*} \frac {\sqrt {2} \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{a} x \sqrt [4]{b x+a x^4}}{-\sqrt {a} x^2+\sqrt {b x+a x^4}}\right )}{3 \sqrt [4]{a} b}+\frac {\sqrt {2} \tanh ^{-1}\left (\frac {\frac {\sqrt [4]{a} x^2}{\sqrt {2}}+\frac {\sqrt {b x+a x^4}}{\sqrt {2} \sqrt [4]{a}}}{x \sqrt [4]{b x+a x^4}}\right )}{3 \sqrt [4]{a} b} \end {gather*}
Antiderivative was successfully verified.
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fricas [B] time = 126.32, size = 355, normalized size = 2.47 \begin {gather*} -\frac {2}{3} \, \left (-\frac {1}{a b^{4}}\right )^{\frac {1}{4}} \arctan \left (\frac {{\left (a b^{4} \sqrt {\frac {1}{b^{2}}} x \left (-\frac {1}{a b^{4}}\right )^{\frac {3}{4}} + a b^{3} x \left (-\frac {1}{a b^{4}}\right )^{\frac {3}{4}}\right )} {\left (a x^{4} + b x\right )}^{\frac {3}{4}} - {\left (a x^{4} + b x\right )}^{\frac {1}{4}} {\left ({\left (a b^{2} x^{3} + b^{3}\right )} \sqrt {\frac {1}{b^{2}}} \left (-\frac {1}{a b^{4}}\right )^{\frac {1}{4}} - {\left (a b x^{3} + b^{2}\right )} \left (-\frac {1}{a b^{4}}\right )^{\frac {1}{4}}\right )}}{2 \, {\left (a x^{4} + b x\right )}}\right ) + \frac {1}{6} \, \left (-\frac {1}{a b^{4}}\right )^{\frac {1}{4}} \log \left (-\frac {2 \, {\left (a x^{4} + b x\right )}^{\frac {3}{4}} a b^{2} \left (-\frac {1}{a b^{4}}\right )^{\frac {3}{4}} + 2 \, \sqrt {a x^{4} + b x} a b x \sqrt {-\frac {1}{a b^{4}}} + 2 \, {\left (a x^{4} + b x\right )}^{\frac {1}{4}} a x^{2} \left (-\frac {1}{a b^{4}}\right )^{\frac {1}{4}} - 1}{2 \, a x^{3} + b}\right ) - \frac {1}{6} \, \left (-\frac {1}{a b^{4}}\right )^{\frac {1}{4}} \log \left (\frac {2 \, {\left (a x^{4} + b x\right )}^{\frac {3}{4}} a b^{2} \left (-\frac {1}{a b^{4}}\right )^{\frac {3}{4}} - 2 \, \sqrt {a x^{4} + b x} a b x \sqrt {-\frac {1}{a b^{4}}} + 2 \, {\left (a x^{4} + b x\right )}^{\frac {1}{4}} a x^{2} \left (-\frac {1}{a b^{4}}\right )^{\frac {1}{4}} + 1}{2 \, a x^{3} + b}\right ) \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.21, size = 162, normalized size = 1.12 \begin {gather*} -\frac {\sqrt {2} \arctan \left (\frac {\sqrt {2} {\left (\sqrt {2} a^{\frac {1}{4}} + 2 \, {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}}\right )}}{2 \, a^{\frac {1}{4}}}\right )}{3 \, a^{\frac {1}{4}} b} - \frac {\sqrt {2} \arctan \left (-\frac {\sqrt {2} {\left (\sqrt {2} a^{\frac {1}{4}} - 2 \, {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}}\right )}}{2 \, a^{\frac {1}{4}}}\right )}{3 \, a^{\frac {1}{4}} b} + \frac {\sqrt {2} \log \left (\sqrt {2} {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}} a^{\frac {1}{4}} + \sqrt {a + \frac {b}{x^{3}}} + \sqrt {a}\right )}{6 \, a^{\frac {1}{4}} b} - \frac {\sqrt {2} \log \left (-\sqrt {2} {\left (a + \frac {b}{x^{3}}\right )}^{\frac {1}{4}} a^{\frac {1}{4}} + \sqrt {a + \frac {b}{x^{3}}} + \sqrt {a}\right )}{6 \, a^{\frac {1}{4}} b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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maple [F] time = 0.04, size = 0, normalized size = 0.00 \[\int \frac {1}{\left (2 a \,x^{3}+b \right ) \left (a \,x^{4}+b x \right )^{\frac {1}{4}}}\, dx\]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{{\left (a x^{4} + b x\right )}^{\frac {1}{4}} {\left (2 \, a x^{3} + b\right )}}\,{d x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.01 \begin {gather*} \int \frac {1}{{\left (a\,x^4+b\,x\right )}^{1/4}\,\left (2\,a\,x^3+b\right )} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{\sqrt [4]{x \left (a x^{3} + b\right )} \left (2 a x^{3} + b\right )}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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