Optimal. Leaf size=102 \[ \frac {a^4 \sqrt {c x^2} \log (a+b x)}{b^5 x}-\frac {a^3 \sqrt {c x^2}}{b^4}+\frac {a^2 x \sqrt {c x^2}}{2 b^3}-\frac {a x^2 \sqrt {c x^2}}{3 b^2}+\frac {x^3 \sqrt {c x^2}}{4 b} \]
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Rubi [A] time = 0.04, antiderivative size = 102, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {15, 43} \[ -\frac {a^3 \sqrt {c x^2}}{b^4}+\frac {a^2 x \sqrt {c x^2}}{2 b^3}+\frac {a^4 \sqrt {c x^2} \log (a+b x)}{b^5 x}-\frac {a x^2 \sqrt {c x^2}}{3 b^2}+\frac {x^3 \sqrt {c x^2}}{4 b} \]
Antiderivative was successfully verified.
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Rule 15
Rule 43
Rubi steps
\begin {align*} \int \frac {x^3 \sqrt {c x^2}}{a+b x} \, dx &=\frac {\sqrt {c x^2} \int \frac {x^4}{a+b x} \, dx}{x}\\ &=\frac {\sqrt {c x^2} \int \left (-\frac {a^3}{b^4}+\frac {a^2 x}{b^3}-\frac {a x^2}{b^2}+\frac {x^3}{b}+\frac {a^4}{b^4 (a+b x)}\right ) \, dx}{x}\\ &=-\frac {a^3 \sqrt {c x^2}}{b^4}+\frac {a^2 x \sqrt {c x^2}}{2 b^3}-\frac {a x^2 \sqrt {c x^2}}{3 b^2}+\frac {x^3 \sqrt {c x^2}}{4 b}+\frac {a^4 \sqrt {c x^2} \log (a+b x)}{b^5 x}\\ \end {align*}
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Mathematica [A] time = 0.02, size = 63, normalized size = 0.62 \[ \frac {c x \left (12 a^4 \log (a+b x)+b x \left (-12 a^3+6 a^2 b x-4 a b^2 x^2+3 b^3 x^3\right )\right )}{12 b^5 \sqrt {c x^2}} \]
Antiderivative was successfully verified.
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fricas [A] time = 0.43, size = 62, normalized size = 0.61 \[ \frac {{\left (3 \, b^{4} x^{4} - 4 \, a b^{3} x^{3} + 6 \, a^{2} b^{2} x^{2} - 12 \, a^{3} b x + 12 \, a^{4} \log \left (b x + a\right )\right )} \sqrt {c x^{2}}}{12 \, b^{5} x} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 1.11, size = 81, normalized size = 0.79 \[ \frac {1}{12} \, \sqrt {c} {\left (\frac {12 \, a^{4} \log \left ({\left | b x + a \right |}\right ) \mathrm {sgn}\relax (x)}{b^{5}} - \frac {12 \, a^{4} \log \left ({\left | a \right |}\right ) \mathrm {sgn}\relax (x)}{b^{5}} + \frac {3 \, b^{3} x^{4} \mathrm {sgn}\relax (x) - 4 \, a b^{2} x^{3} \mathrm {sgn}\relax (x) + 6 \, a^{2} b x^{2} \mathrm {sgn}\relax (x) - 12 \, a^{3} x \mathrm {sgn}\relax (x)}{b^{4}}\right )} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [A] time = 0.01, size = 63, normalized size = 0.62 \[ \frac {\sqrt {c \,x^{2}}\, \left (3 b^{4} x^{4}-4 a \,b^{3} x^{3}+6 a^{2} b^{2} x^{2}+12 a^{4} \ln \left (b x +a \right )-12 a^{3} b x \right )}{12 b^{5} x} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [A] time = 1.57, size = 128, normalized size = 1.25 \[ \frac {\left (-1\right )^{\frac {2 \, c x}{b}} a^{4} \sqrt {c} \log \left (\frac {2 \, c x}{b}\right )}{b^{5}} + \frac {\left (-1\right )^{\frac {2 \, a c x}{b}} a^{4} \sqrt {c} \log \left (-\frac {2 \, a c x}{b {\left | b x + a \right |}}\right )}{b^{5}} + \frac {\sqrt {c x^{2}} a^{2} x}{2 \, b^{3}} + \frac {\left (c x^{2}\right )^{\frac {3}{2}} x}{4 \, b c} - \frac {\sqrt {c x^{2}} a^{3}}{b^{4}} - \frac {\left (c x^{2}\right )^{\frac {3}{2}} a}{3 \, b^{2} c} \]
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 \[ \int \frac {x^3\,\sqrt {c\,x^2}}{a+b\,x} \,d x \]
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 \[ \int \frac {x^{3} \sqrt {c x^{2}}}{a + b x}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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