Optimal. Leaf size=152 \[ \frac {\tanh ^{-1}\left (\frac {2 \sqrt {a} \sqrt [4]{b} x \sqrt [4]{a x^3+b x^2}}{2 \sqrt {b} \sqrt {a x^3+b x^2}+a x^2}\right )}{2 \sqrt {a} b^{3/4}}-\frac {\tan ^{-1}\left (\frac {\frac {\sqrt [4]{b} \sqrt {a x^3+b x^2}}{\sqrt {a}}-\frac {\sqrt {a} x^2}{2 \sqrt [4]{b}}}{x \sqrt [4]{a x^3+b x^2}}\right )}{2 \sqrt {a} b^{3/4}} \]
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Rubi [A] time = 0.37, antiderivative size = 172, normalized size of antiderivative = 1.13, number of steps used = 12, number of rules used = 9, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.360, Rules used = {2056, 107, 106, 490, 1211, 221, 1699, 203, 206} \begin {gather*} \frac {\sqrt {-\frac {a x}{b}} \sqrt [4]{a x+b} \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{a x+b}}{\sqrt [4]{-b} \sqrt {-\frac {a x}{b}}}\right )}{\sqrt {2} a \sqrt [4]{-b} \sqrt [4]{a x^3+b x^2}}-\frac {\sqrt {-\frac {a x}{b}} \sqrt [4]{a x+b} \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{a x+b}}{\sqrt [4]{-b} \sqrt {-\frac {a x}{b}}}\right )}{\sqrt {2} a \sqrt [4]{-b} \sqrt [4]{a x^3+b x^2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 106
Rule 107
Rule 203
Rule 206
Rule 221
Rule 490
Rule 1211
Rule 1699
Rule 2056
Rubi steps
\begin {align*} \int \frac {1}{(2 b+a x) \sqrt [4]{b x^2+a x^3}} \, dx &=\frac {\left (\sqrt {x} \sqrt [4]{b+a x}\right ) \int \frac {1}{\sqrt {x} \sqrt [4]{b+a x} (2 b+a x)} \, dx}{\sqrt [4]{b x^2+a x^3}}\\ &=\frac {\left (\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \int \frac {1}{\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x} (2 b+a x)} \, dx}{\sqrt [4]{b x^2+a x^3}}\\ &=-\frac {\left (4 \sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \operatorname {Subst}\left (\int \frac {x^2}{\left (-a b-a x^4\right ) \sqrt {1-\frac {x^4}{b}}} \, dx,x,\sqrt [4]{b+a x}\right )}{\sqrt [4]{b x^2+a x^3}}\\ &=-\frac {\left (2 \sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \operatorname {Subst}\left (\int \frac {1}{\left (\sqrt {-b}-x^2\right ) \sqrt {1-\frac {x^4}{b}}} \, dx,x,\sqrt [4]{b+a x}\right )}{a \sqrt [4]{b x^2+a x^3}}+\frac {\left (2 \sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \operatorname {Subst}\left (\int \frac {1}{\left (\sqrt {-b}+x^2\right ) \sqrt {1-\frac {x^4}{b}}} \, dx,x,\sqrt [4]{b+a x}\right )}{a \sqrt [4]{b x^2+a x^3}}\\ &=\frac {\left (\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \operatorname {Subst}\left (\int \frac {\sqrt {-b}-x^2}{\left (\sqrt {-b}+x^2\right ) \sqrt {1-\frac {x^4}{b}}} \, dx,x,\sqrt [4]{b+a x}\right )}{a \sqrt {-b} \sqrt [4]{b x^2+a x^3}}-\frac {\left (\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \operatorname {Subst}\left (\int \frac {\sqrt {-b}+x^2}{\left (\sqrt {-b}-x^2\right ) \sqrt {1-\frac {x^4}{b}}} \, dx,x,\sqrt [4]{b+a x}\right )}{a \sqrt {-b} \sqrt [4]{b x^2+a x^3}}\\ &=-\frac {\left (\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \operatorname {Subst}\left (\int \frac {1}{\sqrt {-b}-2 x^2} \, dx,x,\frac {\sqrt [4]{b+a x}}{\sqrt {-\frac {a x}{b}}}\right )}{a \sqrt [4]{b x^2+a x^3}}+\frac {\left (\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x}\right ) \operatorname {Subst}\left (\int \frac {1}{\sqrt {-b}+2 x^2} \, dx,x,\frac {\sqrt [4]{b+a x}}{\sqrt {-\frac {a x}{b}}}\right )}{a \sqrt [4]{b x^2+a x^3}}\\ &=\frac {\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x} \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{b+a x}}{\sqrt [4]{-b} \sqrt {-\frac {a x}{b}}}\right )}{\sqrt {2} a \sqrt [4]{-b} \sqrt [4]{b x^2+a x^3}}-\frac {\sqrt {-\frac {a x}{b}} \sqrt [4]{b+a x} \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{b+a x}}{\sqrt [4]{-b} \sqrt {-\frac {a x}{b}}}\right )}{\sqrt {2} a \sqrt [4]{-b} \sqrt [4]{b x^2+a x^3}}\\ \end {align*}
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Mathematica [C] time = 0.05, size = 58, normalized size = 0.38 \begin {gather*} \frac {x \sqrt [4]{\frac {a x+b}{b}} F_1\left (\frac {1}{2};\frac {1}{4},1;\frac {3}{2};-\frac {a x}{b},-\frac {a x}{2 b}\right )}{b \sqrt [4]{x^2 (a x+b)}} \end {gather*}
Warning: Unable to verify antiderivative.
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IntegrateAlgebraic [A] time = 0.46, size = 152, normalized size = 1.00 \begin {gather*} -\frac {\tan ^{-1}\left (\frac {-\frac {\sqrt {a} x^2}{2 \sqrt [4]{b}}+\frac {\sqrt [4]{b} \sqrt {b x^2+a x^3}}{\sqrt {a}}}{x \sqrt [4]{b x^2+a x^3}}\right )}{2 \sqrt {a} b^{3/4}}+\frac {\tanh ^{-1}\left (\frac {2 \sqrt {a} \sqrt [4]{b} x \sqrt [4]{b x^2+a x^3}}{a x^2+2 \sqrt {b} \sqrt {b x^2+a x^3}}\right )}{2 \sqrt {a} b^{3/4}} \end {gather*}
Antiderivative was successfully verified.
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fricas [F(-1)] 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 [F] time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {1}{{\left (a x^{3} + b x^{2}\right )}^{\frac {1}{4}} {\left (a x + 2 \, b\right )}}\,{d x} \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 \[\int \frac {1}{\left (a x +2 b \right ) \left (a \,x^{3}+b \,x^{2}\right )^{\frac {1}{4}}}\, dx\]
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^{3} + b x^{2}\right )}^{\frac {1}{4}} {\left (a x + 2 \, 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 (2\,b+a\,x\right )\,{\left (a\,x^3+b\,x^2\right )}^{1/4}} \,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^{2} \left (a x + b\right )} \left (a x + 2 b\right )}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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