Optimal. Leaf size=211 \[ \frac {a^3 x^2 \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{2 \left (a+b x^n\right )}+\frac {3 a b^3 x^{2 (1+n)} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{2 (1+n) \left (a b+b^2 x^n\right )}+\frac {3 a^2 b^2 x^{2+n} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{(2+n) \left (a b+b^2 x^n\right )}+\frac {b^4 x^{2+3 n} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{(2+3 n) \left (a b+b^2 x^n\right )} \]
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Rubi [A]
time = 0.04, antiderivative size = 211, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 2, integrand size = 26, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {1369, 276}
\begin {gather*} \frac {3 a^2 b^2 x^{n+2} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{(n+2) \left (a b+b^2 x^n\right )}+\frac {b^4 x^{3 n+2} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{(3 n+2) \left (a b+b^2 x^n\right )}+\frac {3 a b^3 x^{2 (n+1)} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{2 (n+1) \left (a b+b^2 x^n\right )}+\frac {a^3 x^2 \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{2 \left (a+b x^n\right )} \end {gather*}
Antiderivative was successfully verified.
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Rule 276
Rule 1369
Rubi steps
\begin {align*} \int x \left (a^2+2 a b x^n+b^2 x^{2 n}\right )^{3/2} \, dx &=\frac {\sqrt {a^2+2 a b x^n+b^2 x^{2 n}} \int x \left (a b+b^2 x^n\right )^3 \, dx}{b^2 \left (a b+b^2 x^n\right )}\\ &=\frac {\sqrt {a^2+2 a b x^n+b^2 x^{2 n}} \int \left (a^3 b^3 x+3 a^2 b^4 x^{1+n}+3 a b^5 x^{1+2 n}+b^6 x^{1+3 n}\right ) \, dx}{b^2 \left (a b+b^2 x^n\right )}\\ &=\frac {a^3 x^2 \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{2 \left (a+b x^n\right )}+\frac {3 a b^3 x^{2 (1+n)} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{2 (1+n) \left (a b+b^2 x^n\right )}+\frac {3 a^2 b^2 x^{2+n} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{(2+n) \left (a b+b^2 x^n\right )}+\frac {b^4 x^{2+3 n} \sqrt {a^2+2 a b x^n+b^2 x^{2 n}}}{(2+3 n) \left (a b+b^2 x^n\right )}\\ \end {align*}
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Mathematica [A]
time = 0.06, size = 124, normalized size = 0.59 \begin {gather*} \frac {x^2 \sqrt {\left (a+b x^n\right )^2} \left (a^3 \left (4+12 n+11 n^2+3 n^3\right )+6 a^2 b \left (2+5 n+3 n^2\right ) x^n+3 a b^2 \left (4+8 n+3 n^2\right ) x^{2 n}+2 b^3 \left (2+3 n+n^2\right ) x^{3 n}\right )}{2 (1+n) (2+n) (2+3 n) \left (a+b x^n\right )} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.02, size = 145, normalized size = 0.69
method | result | size |
risch | \(\frac {\sqrt {\left (a +b \,x^{n}\right )^{2}}\, a^{3} x^{2}}{2 a +2 b \,x^{n}}+\frac {\sqrt {\left (a +b \,x^{n}\right )^{2}}\, b^{3} x^{2} x^{3 n}}{\left (a +b \,x^{n}\right ) \left (2+3 n \right )}+\frac {3 \sqrt {\left (a +b \,x^{n}\right )^{2}}\, a \,b^{2} x^{2} x^{2 n}}{2 \left (a +b \,x^{n}\right ) \left (1+n \right )}+\frac {3 \sqrt {\left (a +b \,x^{n}\right )^{2}}\, a^{2} b \,x^{2} x^{n}}{\left (a +b \,x^{n}\right ) \left (2+n \right )}\) | \(145\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.28, size = 109, normalized size = 0.52 \begin {gather*} \frac {2 \, {\left (n^{2} + 3 \, n + 2\right )} b^{3} x^{2} x^{3 \, n} + 3 \, {\left (3 \, n^{2} + 8 \, n + 4\right )} a b^{2} x^{2} x^{2 \, n} + 6 \, {\left (3 \, n^{2} + 5 \, n + 2\right )} a^{2} b x^{2} x^{n} + {\left (3 \, n^{3} + 11 \, n^{2} + 12 \, n + 4\right )} a^{3} x^{2}}{2 \, {\left (3 \, n^{3} + 11 \, n^{2} + 12 \, n + 4\right )}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.36, size = 145, normalized size = 0.69 \begin {gather*} \frac {2 \, {\left (b^{3} n^{2} + 3 \, b^{3} n + 2 \, b^{3}\right )} x^{2} x^{3 \, n} + 3 \, {\left (3 \, a b^{2} n^{2} + 8 \, a b^{2} n + 4 \, a b^{2}\right )} x^{2} x^{2 \, n} + 6 \, {\left (3 \, a^{2} b n^{2} + 5 \, a^{2} b n + 2 \, a^{2} b\right )} x^{2} x^{n} + {\left (3 \, a^{3} n^{3} + 11 \, a^{3} n^{2} + 12 \, a^{3} n + 4 \, a^{3}\right )} x^{2}}{2 \, {\left (3 \, n^{3} + 11 \, n^{2} + 12 \, n + 4\right )}} \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 x \left (\left (a + b x^{n}\right )^{2}\right )^{\frac {3}{2}}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 2.97, size = 292, normalized size = 1.38 \begin {gather*} \frac {2 \, b^{3} n^{2} x^{2} x^{3 \, n} \mathrm {sgn}\left (b x^{n} + a\right ) + 9 \, a b^{2} n^{2} x^{2} x^{2 \, n} \mathrm {sgn}\left (b x^{n} + a\right ) + 18 \, a^{2} b n^{2} x^{2} x^{n} \mathrm {sgn}\left (b x^{n} + a\right ) + 3 \, a^{3} n^{3} x^{2} \mathrm {sgn}\left (b x^{n} + a\right ) + 6 \, b^{3} n x^{2} x^{3 \, n} \mathrm {sgn}\left (b x^{n} + a\right ) + 24 \, a b^{2} n x^{2} x^{2 \, n} \mathrm {sgn}\left (b x^{n} + a\right ) + 30 \, a^{2} b n x^{2} x^{n} \mathrm {sgn}\left (b x^{n} + a\right ) + 11 \, a^{3} n^{2} x^{2} \mathrm {sgn}\left (b x^{n} + a\right ) + 4 \, b^{3} x^{2} x^{3 \, n} \mathrm {sgn}\left (b x^{n} + a\right ) + 12 \, a b^{2} x^{2} x^{2 \, n} \mathrm {sgn}\left (b x^{n} + a\right ) + 12 \, a^{2} b x^{2} x^{n} \mathrm {sgn}\left (b x^{n} + a\right ) + 12 \, a^{3} n x^{2} \mathrm {sgn}\left (b x^{n} + a\right ) + 4 \, a^{3} x^{2} \mathrm {sgn}\left (b x^{n} + a\right )}{2 \, {\left (3 \, n^{3} + 11 \, n^{2} + 12 \, n + 4\right )}} \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 = -0.00 \begin {gather*} \int x\,{\left (a^2+b^2\,x^{2\,n}+2\,a\,b\,x^n\right )}^{3/2} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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