Optimal. Leaf size=302 \[ \frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 a^2 d^2-42 b d x (a d+b c)+38 a b c d+35 b^2 c^2\right )}{240 b^3 d^3}-\frac{(a+b x)^{3/2} \sqrt{c+d x} (a d+b c) \left (7 a^2 d^2+2 a b c d+7 b^2 c^2\right )}{64 b^4 d^3}-\frac{\sqrt{a+b x} \sqrt{c+d x} \left (-2 a^3 b c d^3-7 a^4 d^4+2 a b^3 c^3 d+7 b^4 c^4\right )}{128 b^4 d^4}+\frac{(a d+b c) \left (7 a^2 d^2+2 a b c d+7 b^2 c^2\right ) (b c-a d)^2 \tanh ^{-1}\left (\frac{\sqrt{d} \sqrt{a+b x}}{\sqrt{b} \sqrt{c+d x}}\right )}{128 b^{9/2} d^{9/2}}+\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d} \]
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Rubi [A] time = 0.250899, antiderivative size = 302, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 6, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.273, Rules used = {100, 147, 50, 63, 217, 206} \[ \frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 a^2 d^2-42 b d x (a d+b c)+38 a b c d+35 b^2 c^2\right )}{240 b^3 d^3}-\frac{(a+b x)^{3/2} \sqrt{c+d x} (a d+b c) \left (7 a^2 d^2+2 a b c d+7 b^2 c^2\right )}{64 b^4 d^3}-\frac{\sqrt{a+b x} \sqrt{c+d x} \left (-2 a^3 b c d^3-7 a^4 d^4+2 a b^3 c^3 d+7 b^4 c^4\right )}{128 b^4 d^4}+\frac{(a d+b c) \left (7 a^2 d^2+2 a b c d+7 b^2 c^2\right ) (b c-a d)^2 \tanh ^{-1}\left (\frac{\sqrt{d} \sqrt{a+b x}}{\sqrt{b} \sqrt{c+d x}}\right )}{128 b^{9/2} d^{9/2}}+\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d} \]
Antiderivative was successfully verified.
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Rule 100
Rule 147
Rule 50
Rule 63
Rule 217
Rule 206
Rubi steps
\begin{align*} \int x^3 \sqrt{a+b x} \sqrt{c+d x} \, dx &=\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d}+\frac{\int x \sqrt{a+b x} \sqrt{c+d x} \left (-2 a c-\frac{7}{2} (b c+a d) x\right ) \, dx}{5 b d}\\ &=\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d}+\frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 b^2 c^2+38 a b c d+35 a^2 d^2-42 b d (b c+a d) x\right )}{240 b^3 d^3}-\frac{\left ((b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right )\right ) \int \sqrt{a+b x} \sqrt{c+d x} \, dx}{32 b^3 d^3}\\ &=-\frac{(b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) (a+b x)^{3/2} \sqrt{c+d x}}{64 b^4 d^3}+\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d}+\frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 b^2 c^2+38 a b c d+35 a^2 d^2-42 b d (b c+a d) x\right )}{240 b^3 d^3}-\frac{\left ((b c-a d) (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right )\right ) \int \frac{\sqrt{a+b x}}{\sqrt{c+d x}} \, dx}{128 b^4 d^3}\\ &=-\frac{(b c-a d) (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) \sqrt{a+b x} \sqrt{c+d x}}{128 b^4 d^4}-\frac{(b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) (a+b x)^{3/2} \sqrt{c+d x}}{64 b^4 d^3}+\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d}+\frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 b^2 c^2+38 a b c d+35 a^2 d^2-42 b d (b c+a d) x\right )}{240 b^3 d^3}+\frac{\left ((b c-a d)^2 (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right )\right ) \int \frac{1}{\sqrt{a+b x} \sqrt{c+d x}} \, dx}{256 b^4 d^4}\\ &=-\frac{(b c-a d) (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) \sqrt{a+b x} \sqrt{c+d x}}{128 b^4 d^4}-\frac{(b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) (a+b x)^{3/2} \sqrt{c+d x}}{64 b^4 d^3}+\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d}+\frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 b^2 c^2+38 a b c d+35 a^2 d^2-42 b d (b c+a d) x\right )}{240 b^3 d^3}+\frac{\left ((b c-a d)^2 (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right )\right ) \operatorname{Subst}\left (\int \frac{1}{\sqrt{c-\frac{a d}{b}+\frac{d x^2}{b}}} \, dx,x,\sqrt{a+b x}\right )}{128 b^5 d^4}\\ &=-\frac{(b c-a d) (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) \sqrt{a+b x} \sqrt{c+d x}}{128 b^4 d^4}-\frac{(b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) (a+b x)^{3/2} \sqrt{c+d x}}{64 b^4 d^3}+\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d}+\frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 b^2 c^2+38 a b c d+35 a^2 d^2-42 b d (b c+a d) x\right )}{240 b^3 d^3}+\frac{\left ((b c-a d)^2 (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right )\right ) \operatorname{Subst}\left (\int \frac{1}{1-\frac{d x^2}{b}} \, dx,x,\frac{\sqrt{a+b x}}{\sqrt{c+d x}}\right )}{128 b^5 d^4}\\ &=-\frac{(b c-a d) (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) \sqrt{a+b x} \sqrt{c+d x}}{128 b^4 d^4}-\frac{(b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) (a+b x)^{3/2} \sqrt{c+d x}}{64 b^4 d^3}+\frac{x^2 (a+b x)^{3/2} (c+d x)^{3/2}}{5 b d}+\frac{(a+b x)^{3/2} (c+d x)^{3/2} \left (35 b^2 c^2+38 a b c d+35 a^2 d^2-42 b d (b c+a d) x\right )}{240 b^3 d^3}+\frac{(b c-a d)^2 (b c+a d) \left (7 b^2 c^2+2 a b c d+7 a^2 d^2\right ) \tanh ^{-1}\left (\frac{\sqrt{d} \sqrt{a+b x}}{\sqrt{b} \sqrt{c+d x}}\right )}{128 b^{9/2} d^{9/2}}\\ \end{align*}
Mathematica [A] time = 1.12642, size = 282, normalized size = 0.93 \[ \frac{15 (b c-a d)^{5/2} \left (9 a^2 b c d^2+7 a^3 d^3+9 a b^2 c^2 d+7 b^3 c^3\right ) \sqrt{\frac{b (c+d x)}{b c-a d}} \sinh ^{-1}\left (\frac{\sqrt{d} \sqrt{a+b x}}{\sqrt{b c-a d}}\right )-b \sqrt{d} \sqrt{a+b x} (c+d x) \left (2 a^2 b^2 d^2 \left (-17 c^2+11 c d x+28 d^2 x^2\right )-10 a^3 b d^3 (4 c+7 d x)+105 a^4 d^4-2 a b^3 d \left (-11 c^2 d x+20 c^3+8 c d^2 x^2+24 d^3 x^3\right )+b^4 \left (56 c^2 d^2 x^2-70 c^3 d x+105 c^4-48 c d^3 x^3-384 d^4 x^4\right )\right )}{1920 b^5 d^{9/2} \sqrt{c+d x}} \]
Antiderivative was successfully verified.
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Maple [B] time = 0.019, size = 942, normalized size = 3.1 \begin{align*}{\frac{1}{3840\,{b}^{4}{d}^{4}}\sqrt{bx+a}\sqrt{dx+c} \left ( 768\,{x}^{4}{b}^{4}{d}^{4}\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+96\,{x}^{3}a{b}^{3}{d}^{4}\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+96\,{x}^{3}{b}^{4}c{d}^{3}\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}-112\,{x}^{2}{a}^{2}{b}^{2}{d}^{4}\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+32\,{x}^{2}a{b}^{3}c{d}^{3}\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}-112\,{x}^{2}{b}^{4}{c}^{2}{d}^{2}\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+105\,\ln \left ( 1/2\,{\frac{2\,bdx+2\,\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+ad+bc}{\sqrt{bd}}} \right ){a}^{5}{d}^{5}-75\,\ln \left ( 1/2\,{\frac{2\,bdx+2\,\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+ad+bc}{\sqrt{bd}}} \right ){a}^{4}bc{d}^{4}-30\,\ln \left ( 1/2\,{\frac{2\,bdx+2\,\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+ad+bc}{\sqrt{bd}}} \right ){a}^{3}{b}^{2}{c}^{2}{d}^{3}-30\,\ln \left ( 1/2\,{\frac{2\,bdx+2\,\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+ad+bc}{\sqrt{bd}}} \right ){a}^{2}{b}^{3}{c}^{3}{d}^{2}-75\,\ln \left ( 1/2\,{\frac{2\,bdx+2\,\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+ad+bc}{\sqrt{bd}}} \right ) a{b}^{4}{c}^{4}d+105\,\ln \left ( 1/2\,{\frac{2\,bdx+2\,\sqrt{d{x}^{2}b+adx+bcx+ac}\sqrt{bd}+ad+bc}{\sqrt{bd}}} \right ){b}^{5}{c}^{5}+140\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}x{a}^{3}b{d}^{4}-44\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}x{a}^{2}{b}^{2}c{d}^{3}-44\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}xa{b}^{3}{c}^{2}{d}^{2}+140\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}x{b}^{4}{c}^{3}d-210\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}{a}^{4}{d}^{4}+80\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}{a}^{3}bc{d}^{3}+68\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}{a}^{2}{b}^{2}{c}^{2}{d}^{2}+80\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}a{b}^{3}{c}^{3}d-210\,\sqrt{bd}\sqrt{d{x}^{2}b+adx+bcx+ac}{b}^{4}{c}^{4} \right ){\frac{1}{\sqrt{d{x}^{2}b+adx+bcx+ac}}}{\frac{1}{\sqrt{bd}}}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F(-2)] time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A] time = 3.53082, size = 1542, normalized size = 5.11 \begin{align*} \left [\frac{15 \,{\left (7 \, b^{5} c^{5} - 5 \, a b^{4} c^{4} d - 2 \, a^{2} b^{3} c^{3} d^{2} - 2 \, a^{3} b^{2} c^{2} d^{3} - 5 \, a^{4} b c d^{4} + 7 \, a^{5} d^{5}\right )} \sqrt{b d} \log \left (8 \, b^{2} d^{2} x^{2} + b^{2} c^{2} + 6 \, a b c d + a^{2} d^{2} + 4 \,{\left (2 \, b d x + b c + a d\right )} \sqrt{b d} \sqrt{b x + a} \sqrt{d x + c} + 8 \,{\left (b^{2} c d + a b d^{2}\right )} x\right ) + 4 \,{\left (384 \, b^{5} d^{5} x^{4} - 105 \, b^{5} c^{4} d + 40 \, a b^{4} c^{3} d^{2} + 34 \, a^{2} b^{3} c^{2} d^{3} + 40 \, a^{3} b^{2} c d^{4} - 105 \, a^{4} b d^{5} + 48 \,{\left (b^{5} c d^{4} + a b^{4} d^{5}\right )} x^{3} - 8 \,{\left (7 \, b^{5} c^{2} d^{3} - 2 \, a b^{4} c d^{4} + 7 \, a^{2} b^{3} d^{5}\right )} x^{2} + 2 \,{\left (35 \, b^{5} c^{3} d^{2} - 11 \, a b^{4} c^{2} d^{3} - 11 \, a^{2} b^{3} c d^{4} + 35 \, a^{3} b^{2} d^{5}\right )} x\right )} \sqrt{b x + a} \sqrt{d x + c}}{7680 \, b^{5} d^{5}}, -\frac{15 \,{\left (7 \, b^{5} c^{5} - 5 \, a b^{4} c^{4} d - 2 \, a^{2} b^{3} c^{3} d^{2} - 2 \, a^{3} b^{2} c^{2} d^{3} - 5 \, a^{4} b c d^{4} + 7 \, a^{5} d^{5}\right )} \sqrt{-b d} \arctan \left (\frac{{\left (2 \, b d x + b c + a d\right )} \sqrt{-b d} \sqrt{b x + a} \sqrt{d x + c}}{2 \,{\left (b^{2} d^{2} x^{2} + a b c d +{\left (b^{2} c d + a b d^{2}\right )} x\right )}}\right ) - 2 \,{\left (384 \, b^{5} d^{5} x^{4} - 105 \, b^{5} c^{4} d + 40 \, a b^{4} c^{3} d^{2} + 34 \, a^{2} b^{3} c^{2} d^{3} + 40 \, a^{3} b^{2} c d^{4} - 105 \, a^{4} b d^{5} + 48 \,{\left (b^{5} c d^{4} + a b^{4} d^{5}\right )} x^{3} - 8 \,{\left (7 \, b^{5} c^{2} d^{3} - 2 \, a b^{4} c d^{4} + 7 \, a^{2} b^{3} d^{5}\right )} x^{2} + 2 \,{\left (35 \, b^{5} c^{3} d^{2} - 11 \, a b^{4} c^{2} d^{3} - 11 \, a^{2} b^{3} c d^{4} + 35 \, a^{3} b^{2} d^{5}\right )} x\right )} \sqrt{b x + a} \sqrt{d x + c}}{3840 \, b^{5} d^{5}}\right ] \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F] time = 0., size = 0, normalized size = 0. \begin{align*} \int x^{3} \sqrt{a + b x} \sqrt{c + d x}\, dx \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [A] time = 3.15392, size = 491, normalized size = 1.63 \begin{align*} \frac{{\left (\sqrt{b^{2} c +{\left (b x + a\right )} b d - a b d}{\left (2 \,{\left (4 \,{\left (b x + a\right )}{\left (6 \,{\left (b x + a\right )}{\left (\frac{8 \,{\left (b x + a\right )}}{b^{3}} + \frac{b^{13} c d^{7} - 31 \, a b^{12} d^{8}}{b^{15} d^{8}}\right )} - \frac{7 \, b^{14} c^{2} d^{6} + 16 \, a b^{13} c d^{7} - 263 \, a^{2} b^{12} d^{8}}{b^{15} d^{8}}\right )} + \frac{5 \,{\left (7 \, b^{15} c^{3} d^{5} + 9 \, a b^{14} c^{2} d^{6} + 9 \, a^{2} b^{13} c d^{7} - 121 \, a^{3} b^{12} d^{8}\right )}}{b^{15} d^{8}}\right )}{\left (b x + a\right )} - \frac{15 \,{\left (7 \, b^{16} c^{4} d^{4} + 2 \, a b^{15} c^{3} d^{5} - 2 \, a^{3} b^{13} c d^{7} - 7 \, a^{4} b^{12} d^{8}\right )}}{b^{15} d^{8}}\right )} \sqrt{b x + a} - \frac{15 \,{\left (7 \, b^{5} c^{5} - 5 \, a b^{4} c^{4} d - 2 \, a^{2} b^{3} c^{3} d^{2} - 2 \, a^{3} b^{2} c^{2} d^{3} - 5 \, a^{4} b c d^{4} + 7 \, a^{5} d^{5}\right )} \log \left ({\left | -\sqrt{b d} \sqrt{b x + a} + \sqrt{b^{2} c +{\left (b x + a\right )} b d - a b d} \right |}\right )}{\sqrt{b d} b^{2} d^{4}}\right )}{\left | b \right |}}{1920 \, b^{3}} \end{align*}
Verification of antiderivative is not currently implemented for this CAS.
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