Optimal. Leaf size=72 \[ -\frac {2 a^3 (a+b x)^{3/2}}{3 b^4}+\frac {6 a^2 (a+b x)^{5/2}}{5 b^4}-\frac {6 a (a+b x)^{7/2}}{7 b^4}+\frac {2 (a+b x)^{9/2}}{9 b^4} \]
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Rubi [A]
time = 0.01, antiderivative size = 72, normalized size of antiderivative = 1.00, number of steps
used = 2, number of rules used = 1, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {45}
\begin {gather*} -\frac {2 a^3 (a+b x)^{3/2}}{3 b^4}+\frac {6 a^2 (a+b x)^{5/2}}{5 b^4}+\frac {2 (a+b x)^{9/2}}{9 b^4}-\frac {6 a (a+b x)^{7/2}}{7 b^4} \end {gather*}
Antiderivative was successfully verified.
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Rule 45
Rubi steps
\begin {align*} \int x^3 \sqrt {a+b x} \, dx &=\int \left (-\frac {a^3 \sqrt {a+b x}}{b^3}+\frac {3 a^2 (a+b x)^{3/2}}{b^3}-\frac {3 a (a+b x)^{5/2}}{b^3}+\frac {(a+b x)^{7/2}}{b^3}\right ) \, dx\\ &=-\frac {2 a^3 (a+b x)^{3/2}}{3 b^4}+\frac {6 a^2 (a+b x)^{5/2}}{5 b^4}-\frac {6 a (a+b x)^{7/2}}{7 b^4}+\frac {2 (a+b x)^{9/2}}{9 b^4}\\ \end {align*}
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Mathematica [A]
time = 0.05, size = 46, normalized size = 0.64 \begin {gather*} \frac {2 (a+b x)^{3/2} \left (-16 a^3+24 a^2 b x-30 a b^2 x^2+35 b^3 x^3\right )}{315 b^4} \end {gather*}
Antiderivative was successfully verified.
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Mathics [B] Leaf count is larger than twice the leaf count of optimal. \(338\) vs. \(2(72)=144\).
time = 16.10, size = 316, normalized size = 4.39 \begin {gather*} \frac {2 \sqrt {a} \left (16 a^{10} \left (1-\sqrt {\frac {a+b x}{a}}\right )+8 a^9 b x \left (12-11 \sqrt {\frac {a+b x}{a}}\right )+6 a^8 b^2 x^2 \left (40-33 \sqrt {\frac {a+b x}{a}}\right )+a^7 b^3 x^3 \left (320-231 \sqrt {\frac {a+b x}{a}}\right )-105 a^6 b^4 x^4 \sqrt {\frac {a+b x}{a}}+240 a^6 b^4 x^4+189 a^4 b^5 x^5 \left (a+3 b x\right ) \sqrt {\frac {a+b x}{a}}+96 a^5 b^5 x^5+16 a^4 b^6 x^6+9 a^2 b^7 x^7 \left (83 a+61 b x\right ) \sqrt {\frac {a+b x}{a}}+215 a b^9 x^9 \sqrt {\frac {a+b x}{a}}+35 b^{10} x^{10} \sqrt {\frac {a+b x}{a}}\right )}{315 b^4 \left (a^6+6 a^5 b x+15 a^4 b^2 x^2+20 a^3 b^3 x^3+15 a^2 b^4 x^4+6 a b^5 x^5+b^6 x^6\right )} \end {gather*}
Warning: Unable to verify antiderivative.
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Maple [A]
time = 0.10, size = 50, normalized size = 0.69
method | result | size |
gosper | \(-\frac {2 \left (b x +a \right )^{\frac {3}{2}} \left (-35 b^{3} x^{3}+30 a \,b^{2} x^{2}-24 a^{2} b x +16 a^{3}\right )}{315 b^{4}}\) | \(43\) |
derivativedivides | \(\frac {\frac {2 \left (b x +a \right )^{\frac {9}{2}}}{9}-\frac {6 a \left (b x +a \right )^{\frac {7}{2}}}{7}+\frac {6 a^{2} \left (b x +a \right )^{\frac {5}{2}}}{5}-\frac {2 a^{3} \left (b x +a \right )^{\frac {3}{2}}}{3}}{b^{4}}\) | \(50\) |
default | \(\frac {\frac {2 \left (b x +a \right )^{\frac {9}{2}}}{9}-\frac {6 a \left (b x +a \right )^{\frac {7}{2}}}{7}+\frac {6 a^{2} \left (b x +a \right )^{\frac {5}{2}}}{5}-\frac {2 a^{3} \left (b x +a \right )^{\frac {3}{2}}}{3}}{b^{4}}\) | \(50\) |
trager | \(-\frac {2 \left (-35 b^{4} x^{4}-5 a \,b^{3} x^{3}+6 a^{2} b^{2} x^{2}-8 a^{3} b x +16 a^{4}\right ) \sqrt {b x +a}}{315 b^{4}}\) | \(54\) |
risch | \(-\frac {2 \left (-35 b^{4} x^{4}-5 a \,b^{3} x^{3}+6 a^{2} b^{2} x^{2}-8 a^{3} b x +16 a^{4}\right ) \sqrt {b x +a}}{315 b^{4}}\) | \(54\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 56, normalized size = 0.78 \begin {gather*} \frac {2 \, {\left (b x + a\right )}^{\frac {9}{2}}}{9 \, b^{4}} - \frac {6 \, {\left (b x + a\right )}^{\frac {7}{2}} a}{7 \, b^{4}} + \frac {6 \, {\left (b x + a\right )}^{\frac {5}{2}} a^{2}}{5 \, b^{4}} - \frac {2 \, {\left (b x + a\right )}^{\frac {3}{2}} a^{3}}{3 \, b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.31, size = 53, normalized size = 0.74 \begin {gather*} \frac {2 \, {\left (35 \, b^{4} x^{4} + 5 \, a b^{3} x^{3} - 6 \, a^{2} b^{2} x^{2} + 8 \, a^{3} b x - 16 \, a^{4}\right )} \sqrt {b x + a}}{315 \, b^{4}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 1742 vs.
\(2 (68) = 136\).
time = 1.27, size = 1742, normalized size = 24.19
result too large to display
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 116 vs.
\(2 (56) = 112\).
time = 0.00, size = 192, normalized size = 2.67 \begin {gather*} \frac {\frac {2 b \left (\frac {1}{9} \sqrt {a+b x} \left (a+b x\right )^{4}-\frac {4}{7} \sqrt {a+b x} \left (a+b x\right )^{3} a+\frac {6}{5} \sqrt {a+b x} \left (a+b x\right )^{2} a^{2}-\frac {4}{3} \sqrt {a+b x} \left (a+b x\right ) a^{3}+\sqrt {a+b x} a^{4}\right )}{b^{4}}+\frac {2 a \left (\frac {1}{7} \sqrt {a+b x} \left (a+b x\right )^{3}-\frac {3}{5} \sqrt {a+b x} \left (a+b x\right )^{2} a+\sqrt {a+b x} \left (a+b x\right ) a^{2}-\sqrt {a+b x} a^{3}\right )}{b^{3}}}{b} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.05, size = 56, normalized size = 0.78 \begin {gather*} \frac {2\,{\left (a+b\,x\right )}^{9/2}}{9\,b^4}-\frac {2\,a^3\,{\left (a+b\,x\right )}^{3/2}}{3\,b^4}+\frac {6\,a^2\,{\left (a+b\,x\right )}^{5/2}}{5\,b^4}-\frac {6\,a\,{\left (a+b\,x\right )}^{7/2}}{7\,b^4} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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