Optimal. Leaf size=16 \[ -\frac {1}{21 x^{21} \left (b+c x^3\right )^7} \]
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Rubi [A]
time = 0.02, antiderivative size = 16, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 3, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.120, Rules used = {1598, 457, 75}
\begin {gather*} -\frac {1}{21 x^{21} \left (b+c x^3\right )^7} \end {gather*}
Antiderivative was successfully verified.
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Rule 75
Rule 457
Rule 1598
Rubi steps
\begin {align*} \int \frac {x^2 \left (b+2 c x^3\right )}{\left (b x^3+c x^6\right )^8} \, dx &=\int \frac {b+2 c x^3}{x^{22} \left (b+c x^3\right )^8} \, dx\\ &=\frac {1}{3} \text {Subst}\left (\int \frac {b+2 c x}{x^8 (b+c x)^8} \, dx,x,x^3\right )\\ &=-\frac {1}{21 x^{21} \left (b+c x^3\right )^7}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 16, normalized size = 1.00 \begin {gather*} -\frac {1}{21 x^{21} \left (b+c x^3\right )^7} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(196\) vs.
\(2(14)=28\).
time = 0.22, size = 197, normalized size = 12.31
method | result | size |
gosper | \(-\frac {1}{21 x^{21} \left (c \,x^{3}+b \right )^{7}}\) | \(15\) |
risch | \(-\frac {1}{21 x^{21} \left (c \,x^{3}+b \right )^{7}}\) | \(15\) |
default | \(-\frac {c^{8} \left (-\frac {4 b^{4}}{c \left (c \,x^{3}+b \right )^{5}}-\frac {b^{6}}{7 c \left (c \,x^{3}+b \right )^{7}}-\frac {66 b}{c \left (c \,x^{3}+b \right )^{2}}-\frac {132}{c \left (c \,x^{3}+b \right )}-\frac {b^{5}}{c \left (c \,x^{3}+b \right )^{6}}-\frac {12 b^{3}}{c \left (c \,x^{3}+b \right )^{4}}-\frac {30 b^{2}}{c \left (c \,x^{3}+b \right )^{3}}\right )}{3 b^{13}}-\frac {1}{21 b^{7} x^{21}}-\frac {44 c^{6}}{b^{13} x^{3}}+\frac {22 c^{5}}{b^{12} x^{6}}-\frac {10 c^{4}}{b^{11} x^{9}}+\frac {4 c^{3}}{b^{10} x^{12}}-\frac {4 c^{2}}{3 b^{9} x^{15}}+\frac {c}{3 b^{8} x^{18}}\) | \(197\) |
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. 81 vs.
\(2 (14) = 28\).
time = 0.31, size = 81, normalized size = 5.06 \begin {gather*} -\frac {1}{21 \, {\left (c^{7} x^{42} + 7 \, b c^{6} x^{39} + 21 \, b^{2} c^{5} x^{36} + 35 \, b^{3} c^{4} x^{33} + 35 \, b^{4} c^{3} x^{30} + 21 \, b^{5} c^{2} x^{27} + 7 \, b^{6} c x^{24} + b^{7} x^{21}\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 81 vs.
\(2 (14) = 28\).
time = 0.34, size = 81, normalized size = 5.06 \begin {gather*} -\frac {1}{21 \, {\left (c^{7} x^{42} + 7 \, b c^{6} x^{39} + 21 \, b^{2} c^{5} x^{36} + 35 \, b^{3} c^{4} x^{33} + 35 \, b^{4} c^{3} x^{30} + 21 \, b^{5} c^{2} x^{27} + 7 \, b^{6} c x^{24} + b^{7} x^{21}\right )}} \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. 87 vs.
\(2 (15) = 30\).
time = 0.93, size = 87, normalized size = 5.44 \begin {gather*} - \frac {1}{21 b^{7} x^{21} + 147 b^{6} c x^{24} + 441 b^{5} c^{2} x^{27} + 735 b^{4} c^{3} x^{30} + 735 b^{3} c^{4} x^{33} + 441 b^{2} c^{5} x^{36} + 147 b c^{6} x^{39} + 21 c^{7} x^{42}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 3.80, size = 15, normalized size = 0.94 \begin {gather*} -\frac {1}{21 \, {\left (c x^{6} + b x^{3}\right )}^{7}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 5.07, size = 14, normalized size = 0.88 \begin {gather*} -\frac {1}{21\,x^{21}\,{\left (c\,x^3+b\right )}^7} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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