Integrand size = 23, antiderivative size = 102 \[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=\frac {3}{8} a^2 c x \sqrt {a+b x} \sqrt {a c-b c x}+\frac {1}{4} x (a+b x)^{3/2} (a c-b c x)^{3/2}+\frac {3 a^4 c^{3/2} \arctan \left (\frac {\sqrt {c} \sqrt {a+b x}}{\sqrt {c (a-b x)}}\right )}{4 b} \]
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Time = 0.03 (sec) , antiderivative size = 102, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.174, Rules used = {38, 65, 223, 209} \[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=\frac {3 a^4 c^{3/2} \arctan \left (\frac {\sqrt {c} \sqrt {a+b x}}{\sqrt {c (a-b x)}}\right )}{4 b}+\frac {3}{8} a^2 c x \sqrt {a+b x} \sqrt {a c-b c x}+\frac {1}{4} x (a+b x)^{3/2} (a c-b c x)^{3/2} \]
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Rule 38
Rule 65
Rule 209
Rule 223
Rubi steps \begin{align*} \text {integral}& = \frac {1}{4} x (a+b x)^{3/2} (a c-b c x)^{3/2}+\frac {1}{4} \left (3 a^2 c\right ) \int \sqrt {a+b x} \sqrt {a c-b c x} \, dx \\ & = \frac {3}{8} a^2 c x \sqrt {a+b x} \sqrt {a c-b c x}+\frac {1}{4} x (a+b x)^{3/2} (a c-b c x)^{3/2}+\frac {1}{8} \left (3 a^4 c^2\right ) \int \frac {1}{\sqrt {a+b x} \sqrt {a c-b c x}} \, dx \\ & = \frac {3}{8} a^2 c x \sqrt {a+b x} \sqrt {a c-b c x}+\frac {1}{4} x (a+b x)^{3/2} (a c-b c x)^{3/2}+\frac {\left (3 a^4 c^2\right ) \text {Subst}\left (\int \frac {1}{\sqrt {2 a c-c x^2}} \, dx,x,\sqrt {a+b x}\right )}{4 b} \\ & = \frac {3}{8} a^2 c x \sqrt {a+b x} \sqrt {a c-b c x}+\frac {1}{4} x (a+b x)^{3/2} (a c-b c x)^{3/2}+\frac {\left (3 a^4 c^2\right ) \text {Subst}\left (\int \frac {1}{1+c x^2} \, dx,x,\frac {\sqrt {a+b x}}{\sqrt {c (a-b x)}}\right )}{4 b} \\ & = \frac {3}{8} a^2 c x \sqrt {a+b x} \sqrt {a c-b c x}+\frac {1}{4} x (a+b x)^{3/2} (a c-b c x)^{3/2}+\frac {3 a^4 c^{3/2} \tan ^{-1}\left (\frac {\sqrt {c} \sqrt {a+b x}}{\sqrt {c (a-b x)}}\right )}{4 b} \\ \end{align*}
Time = 0.13 (sec) , antiderivative size = 92, normalized size of antiderivative = 0.90 \[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=\frac {(c (a-b x))^{3/2} \left (b x \sqrt {a-b x} \sqrt {a+b x} \left (5 a^2-2 b^2 x^2\right )+6 a^4 \arctan \left (\frac {\sqrt {a+b x}}{\sqrt {a-b x}}\right )\right )}{8 b (a-b x)^{3/2}} \]
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Time = 0.20 (sec) , antiderivative size = 125, normalized size of antiderivative = 1.23
method | result | size |
risch | \(\frac {x \left (-2 b^{2} x^{2}+5 a^{2}\right ) \left (-b x +a \right ) \sqrt {b x +a}\, c^{2}}{8 \sqrt {-c \left (b x -a \right )}}+\frac {3 a^{4} \arctan \left (\frac {\sqrt {b^{2} c}\, x}{\sqrt {-b^{2} c \,x^{2}+a^{2} c}}\right ) \sqrt {-\left (b x +a \right ) c \left (b x -a \right )}\, c^{2}}{8 \sqrt {b^{2} c}\, \sqrt {b x +a}\, \sqrt {-c \left (b x -a \right )}}\) | \(125\) |
default | \(-\frac {\left (b x +a \right )^{\frac {3}{2}} \left (-b c x +a c \right )^{\frac {5}{2}}}{4 b c}+\frac {3 a \left (-\frac {\sqrt {b x +a}\, \left (-b c x +a c \right )^{\frac {5}{2}}}{3 b c}+\frac {a \left (\frac {\left (-b c x +a c \right )^{\frac {3}{2}} \sqrt {b x +a}}{2 b}+\frac {3 a c \left (\frac {\sqrt {-b c x +a c}\, \sqrt {b x +a}}{b}+\frac {a c \sqrt {\left (b x +a \right ) \left (-b c x +a c \right )}\, \arctan \left (\frac {\sqrt {b^{2} c}\, x}{\sqrt {-b^{2} c \,x^{2}+a^{2} c}}\right )}{\sqrt {-b c x +a c}\, \sqrt {b x +a}\, \sqrt {b^{2} c}}\right )}{2}\right )}{3}\right )}{4}\) | \(184\) |
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Time = 0.25 (sec) , antiderivative size = 193, normalized size of antiderivative = 1.89 \[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=\left [\frac {3 \, a^{4} \sqrt {-c} c \log \left (2 \, b^{2} c x^{2} + 2 \, \sqrt {-b c x + a c} \sqrt {b x + a} b \sqrt {-c} x - a^{2} c\right ) - 2 \, {\left (2 \, b^{3} c x^{3} - 5 \, a^{2} b c x\right )} \sqrt {-b c x + a c} \sqrt {b x + a}}{16 \, b}, -\frac {3 \, a^{4} c^{\frac {3}{2}} \arctan \left (\frac {\sqrt {-b c x + a c} \sqrt {b x + a} b \sqrt {c} x}{b^{2} c x^{2} - a^{2} c}\right ) + {\left (2 \, b^{3} c x^{3} - 5 \, a^{2} b c x\right )} \sqrt {-b c x + a c} \sqrt {b x + a}}{8 \, b}\right ] \]
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\[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=\int \left (- c \left (- a + b x\right )\right )^{\frac {3}{2}} \left (a + b x\right )^{\frac {3}{2}}\, dx \]
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Time = 0.30 (sec) , antiderivative size = 63, normalized size of antiderivative = 0.62 \[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=\frac {3 \, a^{4} c^{\frac {3}{2}} \arcsin \left (\frac {b x}{a}\right )}{8 \, b} + \frac {3}{8} \, \sqrt {-b^{2} c x^{2} + a^{2} c} a^{2} c x + \frac {1}{4} \, {\left (-b^{2} c x^{2} + a^{2} c\right )}^{\frac {3}{2}} x \]
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Leaf count of result is larger than twice the leaf count of optimal. 354 vs. \(2 (82) = 164\).
Time = 0.41 (sec) , antiderivative size = 354, normalized size of antiderivative = 3.47 \[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=-\frac {24 \, {\left (\frac {2 \, a c \log \left ({\left | -\sqrt {b x + a} \sqrt {-c} + \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \right |}\right )}{\sqrt {-c}} - \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \sqrt {b x + a}\right )} a^{3} c - 12 \, {\left (\frac {2 \, a^{2} c \log \left ({\left | -\sqrt {b x + a} \sqrt {-c} + \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \right |}\right )}{\sqrt {-c}} + \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \sqrt {b x + a} {\left (b x - 2 \, a\right )}\right )} a^{2} c - 4 \, {\left (\frac {6 \, a^{3} c \log \left ({\left | -\sqrt {b x + a} \sqrt {-c} + \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \right |}\right )}{\sqrt {-c}} - {\left ({\left (2 \, b x - 5 \, a\right )} {\left (b x + a\right )} + 9 \, a^{2}\right )} \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \sqrt {b x + a}\right )} a c + {\left (\frac {18 \, a^{4} c \log \left ({\left | -\sqrt {b x + a} \sqrt {-c} + \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \right |}\right )}{\sqrt {-c}} - {\left (39 \, a^{3} - {\left (2 \, {\left (3 \, b x - 10 \, a\right )} {\left (b x + a\right )} + 43 \, a^{2}\right )} {\left (b x + a\right )}\right )} \sqrt {-{\left (b x + a\right )} c + 2 \, a c} \sqrt {b x + a}\right )} c}{24 \, b} \]
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Timed out. \[ \int (a+b x)^{3/2} (a c-b c x)^{3/2} \, dx=\int {\left (a\,c-b\,c\,x\right )}^{3/2}\,{\left (a+b\,x\right )}^{3/2} \,d x \]
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