Optimal. Leaf size=47 \[ -\frac {b^3}{3 x^3}-\frac {9 a b^2}{8 x^{8/3}}-\frac {9 a^2 b}{7 x^{7/3}}-\frac {a^3}{2 x^2} \]
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Rubi [A]
time = 0.02, antiderivative size = 47, normalized size of antiderivative = 1.00, number of steps
used = 4, number of rules used = 3, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.200, Rules used = {269, 272, 45}
\begin {gather*} -\frac {a^3}{2 x^2}-\frac {9 a^2 b}{7 x^{7/3}}-\frac {9 a b^2}{8 x^{8/3}}-\frac {b^3}{3 x^3} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rule 269
Rule 272
Rubi steps
\begin {align*} \int \frac {\left (a+\frac {b}{\sqrt [3]{x}}\right )^3}{x^3} \, dx &=\int \frac {\left (b+a \sqrt [3]{x}\right )^3}{x^4} \, dx\\ &=3 \text {Subst}\left (\int \frac {(b+a x)^3}{x^{10}} \, dx,x,\sqrt [3]{x}\right )\\ &=3 \text {Subst}\left (\int \left (\frac {b^3}{x^{10}}+\frac {3 a b^2}{x^9}+\frac {3 a^2 b}{x^8}+\frac {a^3}{x^7}\right ) \, dx,x,\sqrt [3]{x}\right )\\ &=-\frac {b^3}{3 x^3}-\frac {9 a b^2}{8 x^{8/3}}-\frac {9 a^2 b}{7 x^{7/3}}-\frac {a^3}{2 x^2}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 41, normalized size = 0.87 \begin {gather*} \frac {-56 b^3-189 a b^2 \sqrt [3]{x}-216 a^2 b x^{2/3}-84 a^3 x}{168 x^3} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.19, size = 36, normalized size = 0.77
method | result | size |
derivativedivides | \(-\frac {b^{3}}{3 x^{3}}-\frac {9 a \,b^{2}}{8 x^{\frac {8}{3}}}-\frac {9 a^{2} b}{7 x^{\frac {7}{3}}}-\frac {a^{3}}{2 x^{2}}\) | \(36\) |
default | \(-\frac {b^{3}}{3 x^{3}}-\frac {9 a \,b^{2}}{8 x^{\frac {8}{3}}}-\frac {9 a^{2} b}{7 x^{\frac {7}{3}}}-\frac {a^{3}}{2 x^{2}}\) | \(36\) |
trager | \(\frac {\left (x -1\right ) \left (3 a^{3} x^{2}+2 b^{3} x^{2}+3 a^{3} x +2 b^{3} x +2 b^{3}\right )}{6 x^{3}}-\frac {9 a \,b^{2}}{8 x^{\frac {8}{3}}}-\frac {9 a^{2} b}{7 x^{\frac {7}{3}}}\) | \(62\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 98 vs.
\(2 (35) = 70\).
time = 0.29, size = 98, normalized size = 2.09 \begin {gather*} -\frac {{\left (a + \frac {b}{x^{\frac {1}{3}}}\right )}^{9}}{3 \, b^{6}} + \frac {15 \, {\left (a + \frac {b}{x^{\frac {1}{3}}}\right )}^{8} a}{8 \, b^{6}} - \frac {30 \, {\left (a + \frac {b}{x^{\frac {1}{3}}}\right )}^{7} a^{2}}{7 \, b^{6}} + \frac {5 \, {\left (a + \frac {b}{x^{\frac {1}{3}}}\right )}^{6} a^{3}}{b^{6}} - \frac {3 \, {\left (a + \frac {b}{x^{\frac {1}{3}}}\right )}^{5} a^{4}}{b^{6}} + \frac {3 \, {\left (a + \frac {b}{x^{\frac {1}{3}}}\right )}^{4} a^{5}}{4 \, b^{6}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.38, size = 35, normalized size = 0.74 \begin {gather*} -\frac {84 \, a^{3} x + 216 \, a^{2} b x^{\frac {2}{3}} + 189 \, a b^{2} x^{\frac {1}{3}} + 56 \, b^{3}}{168 \, x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 0.39, size = 44, normalized size = 0.94 \begin {gather*} - \frac {a^{3}}{2 x^{2}} - \frac {9 a^{2} b}{7 x^{\frac {7}{3}}} - \frac {9 a b^{2}}{8 x^{\frac {8}{3}}} - \frac {b^{3}}{3 x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 0.50, size = 35, normalized size = 0.74 \begin {gather*} -\frac {84 \, a^{3} x + 216 \, a^{2} b x^{\frac {2}{3}} + 189 \, a b^{2} x^{\frac {1}{3}} + 56 \, b^{3}}{168 \, x^{3}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.12, size = 35, normalized size = 0.74 \begin {gather*} -\frac {84\,a^3\,x+56\,b^3+189\,a\,b^2\,x^{1/3}+216\,a^2\,b\,x^{2/3}}{168\,x^3} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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