Optimal. Leaf size=122 \[ \frac {a (2 A b-a B) x \sqrt {a+b x^2}}{16 b^2}+\frac {(2 A b-a B) x^3 \sqrt {a+b x^2}}{8 b}+\frac {B x^3 \left (a+b x^2\right )^{3/2}}{6 b}-\frac {a^2 (2 A b-a B) \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right )}{16 b^{5/2}} \]
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Rubi [A]
time = 0.04, antiderivative size = 122, normalized size of antiderivative = 1.00, number of steps
used = 5, number of rules used = 5, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.227, Rules used = {470, 285, 327,
223, 212} \begin {gather*} -\frac {a^2 (2 A b-a B) \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right )}{16 b^{5/2}}+\frac {a x \sqrt {a+b x^2} (2 A b-a B)}{16 b^2}+\frac {x^3 \sqrt {a+b x^2} (2 A b-a B)}{8 b}+\frac {B x^3 \left (a+b x^2\right )^{3/2}}{6 b} \end {gather*}
Antiderivative was successfully verified.
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Rule 212
Rule 223
Rule 285
Rule 327
Rule 470
Rubi steps
\begin {align*} \int x^2 \sqrt {a+b x^2} \left (A+B x^2\right ) \, dx &=\frac {B x^3 \left (a+b x^2\right )^{3/2}}{6 b}-\frac {(-6 A b+3 a B) \int x^2 \sqrt {a+b x^2} \, dx}{6 b}\\ &=\frac {(2 A b-a B) x^3 \sqrt {a+b x^2}}{8 b}+\frac {B x^3 \left (a+b x^2\right )^{3/2}}{6 b}+\frac {(a (2 A b-a B)) \int \frac {x^2}{\sqrt {a+b x^2}} \, dx}{8 b}\\ &=\frac {a (2 A b-a B) x \sqrt {a+b x^2}}{16 b^2}+\frac {(2 A b-a B) x^3 \sqrt {a+b x^2}}{8 b}+\frac {B x^3 \left (a+b x^2\right )^{3/2}}{6 b}-\frac {\left (a^2 (2 A b-a B)\right ) \int \frac {1}{\sqrt {a+b x^2}} \, dx}{16 b^2}\\ &=\frac {a (2 A b-a B) x \sqrt {a+b x^2}}{16 b^2}+\frac {(2 A b-a B) x^3 \sqrt {a+b x^2}}{8 b}+\frac {B x^3 \left (a+b x^2\right )^{3/2}}{6 b}-\frac {\left (a^2 (2 A b-a B)\right ) \text {Subst}\left (\int \frac {1}{1-b x^2} \, dx,x,\frac {x}{\sqrt {a+b x^2}}\right )}{16 b^2}\\ &=\frac {a (2 A b-a B) x \sqrt {a+b x^2}}{16 b^2}+\frac {(2 A b-a B) x^3 \sqrt {a+b x^2}}{8 b}+\frac {B x^3 \left (a+b x^2\right )^{3/2}}{6 b}-\frac {a^2 (2 A b-a B) \tanh ^{-1}\left (\frac {\sqrt {b} x}{\sqrt {a+b x^2}}\right )}{16 b^{5/2}}\\ \end {align*}
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Mathematica [A]
time = 0.12, size = 100, normalized size = 0.82 \begin {gather*} \frac {\sqrt {a+b x^2} \left (6 a A b x-3 a^2 B x+12 A b^2 x^3+2 a b B x^3+8 b^2 B x^5\right )}{48 b^2}-\frac {a^2 (-2 A b+a B) \log \left (-\sqrt {b} x+\sqrt {a+b x^2}\right )}{16 b^{5/2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.08, size = 144, normalized size = 1.18
method | result | size |
risch | \(\frac {x \left (8 b^{2} B \,x^{4}+12 A \,b^{2} x^{2}+2 B a b \,x^{2}+6 a b A -3 a^{2} B \right ) \sqrt {b \,x^{2}+a}}{48 b^{2}}-\frac {a^{2} \ln \left (x \sqrt {b}+\sqrt {b \,x^{2}+a}\right ) A}{8 b^{\frac {3}{2}}}+\frac {a^{3} \ln \left (x \sqrt {b}+\sqrt {b \,x^{2}+a}\right ) B}{16 b^{\frac {5}{2}}}\) | \(105\) |
default | \(B \left (\frac {x^{3} \left (b \,x^{2}+a \right )^{\frac {3}{2}}}{6 b}-\frac {a \left (\frac {x \left (b \,x^{2}+a \right )^{\frac {3}{2}}}{4 b}-\frac {a \left (\frac {x \sqrt {b \,x^{2}+a}}{2}+\frac {a \ln \left (x \sqrt {b}+\sqrt {b \,x^{2}+a}\right )}{2 \sqrt {b}}\right )}{4 b}\right )}{2 b}\right )+A \left (\frac {x \left (b \,x^{2}+a \right )^{\frac {3}{2}}}{4 b}-\frac {a \left (\frac {x \sqrt {b \,x^{2}+a}}{2}+\frac {a \ln \left (x \sqrt {b}+\sqrt {b \,x^{2}+a}\right )}{2 \sqrt {b}}\right )}{4 b}\right )\) | \(144\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 124, normalized size = 1.02 \begin {gather*} \frac {{\left (b x^{2} + a\right )}^{\frac {3}{2}} B x^{3}}{6 \, b} - \frac {{\left (b x^{2} + a\right )}^{\frac {3}{2}} B a x}{8 \, b^{2}} + \frac {\sqrt {b x^{2} + a} B a^{2} x}{16 \, b^{2}} + \frac {{\left (b x^{2} + a\right )}^{\frac {3}{2}} A x}{4 \, b} - \frac {\sqrt {b x^{2} + a} A a x}{8 \, b} + \frac {B a^{3} \operatorname {arsinh}\left (\frac {b x}{\sqrt {a b}}\right )}{16 \, b^{\frac {5}{2}}} - \frac {A a^{2} \operatorname {arsinh}\left (\frac {b x}{\sqrt {a b}}\right )}{8 \, b^{\frac {3}{2}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 2.19, size = 206, normalized size = 1.69 \begin {gather*} \left [-\frac {3 \, {\left (B a^{3} - 2 \, A a^{2} b\right )} \sqrt {b} \log \left (-2 \, b x^{2} + 2 \, \sqrt {b x^{2} + a} \sqrt {b} x - a\right ) - 2 \, {\left (8 \, B b^{3} x^{5} + 2 \, {\left (B a b^{2} + 6 \, A b^{3}\right )} x^{3} - 3 \, {\left (B a^{2} b - 2 \, A a b^{2}\right )} x\right )} \sqrt {b x^{2} + a}}{96 \, b^{3}}, -\frac {3 \, {\left (B a^{3} - 2 \, A a^{2} b\right )} \sqrt {-b} \arctan \left (\frac {\sqrt {-b} x}{\sqrt {b x^{2} + a}}\right ) - {\left (8 \, B b^{3} x^{5} + 2 \, {\left (B a b^{2} + 6 \, A b^{3}\right )} x^{3} - 3 \, {\left (B a^{2} b - 2 \, A a b^{2}\right )} x\right )} \sqrt {b x^{2} + a}}{48 \, b^{3}}\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. 226 vs.
\(2 (107) = 214\).
time = 7.35, size = 226, normalized size = 1.85 \begin {gather*} \frac {A a^{\frac {3}{2}} x}{8 b \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {3 A \sqrt {a} x^{3}}{8 \sqrt {1 + \frac {b x^{2}}{a}}} - \frac {A a^{2} \operatorname {asinh}{\left (\frac {\sqrt {b} x}{\sqrt {a}} \right )}}{8 b^{\frac {3}{2}}} + \frac {A b x^{5}}{4 \sqrt {a} \sqrt {1 + \frac {b x^{2}}{a}}} - \frac {B a^{\frac {5}{2}} x}{16 b^{2} \sqrt {1 + \frac {b x^{2}}{a}}} - \frac {B a^{\frac {3}{2}} x^{3}}{48 b \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {5 B \sqrt {a} x^{5}}{24 \sqrt {1 + \frac {b x^{2}}{a}}} + \frac {B a^{3} \operatorname {asinh}{\left (\frac {\sqrt {b} x}{\sqrt {a}} \right )}}{16 b^{\frac {5}{2}}} + \frac {B b x^{7}}{6 \sqrt {a} \sqrt {1 + \frac {b x^{2}}{a}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A]
time = 2.96, size = 100, normalized size = 0.82 \begin {gather*} \frac {1}{48} \, {\left (2 \, {\left (4 \, B x^{2} + \frac {B a b^{3} + 6 \, A b^{4}}{b^{4}}\right )} x^{2} - \frac {3 \, {\left (B a^{2} b^{2} - 2 \, A a b^{3}\right )}}{b^{4}}\right )} \sqrt {b x^{2} + a} x - \frac {{\left (B a^{3} - 2 \, A a^{2} b\right )} \log \left ({\left | -\sqrt {b} x + \sqrt {b x^{2} + a} \right |}\right )}{16 \, b^{\frac {5}{2}}} \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 = -0.01 \begin {gather*} \int x^2\,\left (B\,x^2+A\right )\,\sqrt {b\,x^2+a} \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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