Integrand size = 20, antiderivative size = 150 \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=\frac {b^2 (2 A b+5 a B) \sqrt {x} \sqrt {a+b x}}{a}-\frac {2 b (2 A b+5 a B) (a+b x)^{3/2}}{3 a \sqrt {x}}-\frac {2 (2 A b+5 a B) (a+b x)^{5/2}}{15 a x^{3/2}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+b^{3/2} (2 A b+5 a B) \text {arctanh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {a+b x}}\right ) \]
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Time = 0.05 (sec) , antiderivative size = 150, normalized size of antiderivative = 1.00, number of steps used = 7, number of rules used = 6, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.300, Rules used = {79, 49, 52, 65, 223, 212} \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=b^{3/2} (5 a B+2 A b) \text {arctanh}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {a+b x}}\right )+\frac {b^2 \sqrt {x} \sqrt {a+b x} (5 a B+2 A b)}{a}-\frac {2 (a+b x)^{5/2} (5 a B+2 A b)}{15 a x^{3/2}}-\frac {2 b (a+b x)^{3/2} (5 a B+2 A b)}{3 a \sqrt {x}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}} \]
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Rule 49
Rule 52
Rule 65
Rule 79
Rule 212
Rule 223
Rubi steps \begin{align*} \text {integral}& = -\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+\frac {\left (2 \left (A b+\frac {5 a B}{2}\right )\right ) \int \frac {(a+b x)^{5/2}}{x^{5/2}} \, dx}{5 a} \\ & = -\frac {2 (2 A b+5 a B) (a+b x)^{5/2}}{15 a x^{3/2}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+\frac {(b (2 A b+5 a B)) \int \frac {(a+b x)^{3/2}}{x^{3/2}} \, dx}{3 a} \\ & = -\frac {2 b (2 A b+5 a B) (a+b x)^{3/2}}{3 a \sqrt {x}}-\frac {2 (2 A b+5 a B) (a+b x)^{5/2}}{15 a x^{3/2}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+\frac {\left (b^2 (2 A b+5 a B)\right ) \int \frac {\sqrt {a+b x}}{\sqrt {x}} \, dx}{a} \\ & = \frac {b^2 (2 A b+5 a B) \sqrt {x} \sqrt {a+b x}}{a}-\frac {2 b (2 A b+5 a B) (a+b x)^{3/2}}{3 a \sqrt {x}}-\frac {2 (2 A b+5 a B) (a+b x)^{5/2}}{15 a x^{3/2}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+\frac {1}{2} \left (b^2 (2 A b+5 a B)\right ) \int \frac {1}{\sqrt {x} \sqrt {a+b x}} \, dx \\ & = \frac {b^2 (2 A b+5 a B) \sqrt {x} \sqrt {a+b x}}{a}-\frac {2 b (2 A b+5 a B) (a+b x)^{3/2}}{3 a \sqrt {x}}-\frac {2 (2 A b+5 a B) (a+b x)^{5/2}}{15 a x^{3/2}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+\left (b^2 (2 A b+5 a B)\right ) \text {Subst}\left (\int \frac {1}{\sqrt {a+b x^2}} \, dx,x,\sqrt {x}\right ) \\ & = \frac {b^2 (2 A b+5 a B) \sqrt {x} \sqrt {a+b x}}{a}-\frac {2 b (2 A b+5 a B) (a+b x)^{3/2}}{3 a \sqrt {x}}-\frac {2 (2 A b+5 a B) (a+b x)^{5/2}}{15 a x^{3/2}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+\left (b^2 (2 A b+5 a B)\right ) \text {Subst}\left (\int \frac {1}{1-b x^2} \, dx,x,\frac {\sqrt {x}}{\sqrt {a+b x}}\right ) \\ & = \frac {b^2 (2 A b+5 a B) \sqrt {x} \sqrt {a+b x}}{a}-\frac {2 b (2 A b+5 a B) (a+b x)^{3/2}}{3 a \sqrt {x}}-\frac {2 (2 A b+5 a B) (a+b x)^{5/2}}{15 a x^{3/2}}-\frac {2 A (a+b x)^{7/2}}{5 a x^{5/2}}+b^{3/2} (2 A b+5 a B) \tanh ^{-1}\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {a+b x}}\right ) \\ \end{align*}
Time = 0.29 (sec) , antiderivative size = 108, normalized size of antiderivative = 0.72 \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=-\frac {\sqrt {a+b x} \left (b^2 x^2 (46 A-15 B x)+2 a^2 (3 A+5 B x)+2 a b x (11 A+35 B x)\right )}{15 x^{5/2}}+2 b^{3/2} (2 A b+5 a B) \text {arctanh}\left (\frac {\sqrt {b} \sqrt {x}}{-\sqrt {a}+\sqrt {a+b x}}\right ) \]
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Time = 0.50 (sec) , antiderivative size = 117, normalized size of antiderivative = 0.78
method | result | size |
risch | \(-\frac {\sqrt {b x +a}\, \left (-15 b^{2} B \,x^{3}+46 A \,b^{2} x^{2}+70 B a b \,x^{2}+22 a A b x +10 a^{2} B x +6 a^{2} A \right )}{15 x^{\frac {5}{2}}}+\frac {b^{\frac {3}{2}} \left (2 A b +5 B a \right ) \ln \left (\frac {\frac {a}{2}+b x}{\sqrt {b}}+\sqrt {b \,x^{2}+a x}\right ) \sqrt {x \left (b x +a \right )}}{2 \sqrt {x}\, \sqrt {b x +a}}\) | \(117\) |
default | \(\frac {\sqrt {b x +a}\, \left (30 A \ln \left (\frac {2 \sqrt {x \left (b x +a \right )}\, \sqrt {b}+2 b x +a}{2 \sqrt {b}}\right ) b^{3} x^{3}+75 B \ln \left (\frac {2 \sqrt {x \left (b x +a \right )}\, \sqrt {b}+2 b x +a}{2 \sqrt {b}}\right ) a \,b^{2} x^{3}+30 B \,b^{\frac {5}{2}} \sqrt {x \left (b x +a \right )}\, x^{3}-92 A \,b^{\frac {5}{2}} \sqrt {x \left (b x +a \right )}\, x^{2}-140 B \,b^{\frac {3}{2}} \sqrt {x \left (b x +a \right )}\, a \,x^{2}-44 A a \,b^{\frac {3}{2}} x \sqrt {x \left (b x +a \right )}-20 B \,a^{2} x \sqrt {x \left (b x +a \right )}\, \sqrt {b}-12 A \,a^{2} \sqrt {x \left (b x +a \right )}\, \sqrt {b}\right )}{30 x^{\frac {5}{2}} \sqrt {x \left (b x +a \right )}\, \sqrt {b}}\) | \(206\) |
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Time = 0.24 (sec) , antiderivative size = 217, normalized size of antiderivative = 1.45 \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=\left [\frac {15 \, {\left (5 \, B a b + 2 \, A b^{2}\right )} \sqrt {b} x^{3} \log \left (2 \, b x + 2 \, \sqrt {b x + a} \sqrt {b} \sqrt {x} + a\right ) + 2 \, {\left (15 \, B b^{2} x^{3} - 6 \, A a^{2} - 2 \, {\left (35 \, B a b + 23 \, A b^{2}\right )} x^{2} - 2 \, {\left (5 \, B a^{2} + 11 \, A a b\right )} x\right )} \sqrt {b x + a} \sqrt {x}}{30 \, x^{3}}, -\frac {15 \, {\left (5 \, B a b + 2 \, A b^{2}\right )} \sqrt {-b} x^{3} \arctan \left (\frac {\sqrt {b x + a} \sqrt {-b}}{b \sqrt {x}}\right ) - {\left (15 \, B b^{2} x^{3} - 6 \, A a^{2} - 2 \, {\left (35 \, B a b + 23 \, A b^{2}\right )} x^{2} - 2 \, {\left (5 \, B a^{2} + 11 \, A a b\right )} x\right )} \sqrt {b x + a} \sqrt {x}}{15 \, x^{3}}\right ] \]
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Leaf count of result is larger than twice the leaf count of optimal. 303 vs. \(2 (144) = 288\).
Time = 7.18 (sec) , antiderivative size = 303, normalized size of antiderivative = 2.02 \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=- \frac {2 A \sqrt {a} b^{2}}{\sqrt {x} \sqrt {1 + \frac {b x}{a}}} - \frac {2 A a^{2} \sqrt {b} \sqrt {\frac {a}{b x} + 1}}{5 x^{2}} - \frac {22 A a b^{\frac {3}{2}} \sqrt {\frac {a}{b x} + 1}}{15 x} - \frac {16 A b^{\frac {5}{2}} \sqrt {\frac {a}{b x} + 1}}{15} + 2 A b^{\frac {5}{2}} \operatorname {asinh}{\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {a}} \right )} - \frac {2 A b^{3} \sqrt {x}}{\sqrt {a} \sqrt {1 + \frac {b x}{a}}} - \frac {4 B a^{\frac {3}{2}} b}{\sqrt {x} \sqrt {1 + \frac {b x}{a}}} + B \sqrt {a} b^{2} \sqrt {x} \sqrt {1 + \frac {b x}{a}} - \frac {4 B \sqrt {a} b^{2} \sqrt {x}}{\sqrt {1 + \frac {b x}{a}}} - \frac {2 B a^{2} \sqrt {b} \sqrt {\frac {a}{b x} + 1}}{3 x} - \frac {2 B a b^{\frac {3}{2}} \sqrt {\frac {a}{b x} + 1}}{3} + 5 B a b^{\frac {3}{2}} \operatorname {asinh}{\left (\frac {\sqrt {b} \sqrt {x}}{\sqrt {a}} \right )} \]
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Leaf count of result is larger than twice the leaf count of optimal. 244 vs. \(2 (120) = 240\).
Time = 0.20 (sec) , antiderivative size = 244, normalized size of antiderivative = 1.63 \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=\frac {5}{2} \, B a b^{\frac {3}{2}} \log \left (2 \, b x + a + 2 \, \sqrt {b x^{2} + a x} \sqrt {b}\right ) + A b^{\frac {5}{2}} \log \left (2 \, b x + a + 2 \, \sqrt {b x^{2} + a x} \sqrt {b}\right ) - \frac {35 \, \sqrt {b x^{2} + a x} B a b}{6 \, x} - \frac {38 \, \sqrt {b x^{2} + a x} A b^{2}}{15 \, x} - \frac {5 \, \sqrt {b x^{2} + a x} B a^{2}}{6 \, x^{2}} - \frac {7 \, \sqrt {b x^{2} + a x} A a b}{30 \, x^{2}} - \frac {5 \, {\left (b x^{2} + a x\right )}^{\frac {3}{2}} B a}{6 \, x^{3}} + \frac {3 \, \sqrt {b x^{2} + a x} A a^{2}}{10 \, x^{3}} - \frac {{\left (b x^{2} + a x\right )}^{\frac {3}{2}} A b}{3 \, x^{3}} + \frac {{\left (b x^{2} + a x\right )}^{\frac {5}{2}} B}{x^{4}} - \frac {{\left (b x^{2} + a x\right )}^{\frac {3}{2}} A a}{2 \, x^{4}} - \frac {{\left (b x^{2} + a x\right )}^{\frac {5}{2}} A}{5 \, x^{5}} \]
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Time = 75.64 (sec) , antiderivative size = 186, normalized size of antiderivative = 1.24 \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=-\frac {{\left (\frac {15 \, {\left (5 \, B a b^{2} + 2 \, A b^{3}\right )} \log \left ({\left | -\sqrt {b x + a} \sqrt {b} + \sqrt {{\left (b x + a\right )} b - a b} \right |}\right )}{\sqrt {b}} - \frac {{\left ({\left ({\left (15 \, {\left (b x + a\right )} B b^{4} - \frac {23 \, {\left (5 \, B a^{3} b^{6} + 2 \, A a^{2} b^{7}\right )}}{a^{2} b^{2}}\right )} {\left (b x + a\right )} + \frac {35 \, {\left (5 \, B a^{4} b^{6} + 2 \, A a^{3} b^{7}\right )}}{a^{2} b^{2}}\right )} {\left (b x + a\right )} - \frac {15 \, {\left (5 \, B a^{5} b^{6} + 2 \, A a^{4} b^{7}\right )}}{a^{2} b^{2}}\right )} \sqrt {b x + a}}{{\left ({\left (b x + a\right )} b - a b\right )}^{\frac {5}{2}}}\right )} b}{15 \, {\left | b \right |}} \]
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Timed out. \[ \int \frac {(a+b x)^{5/2} (A+B x)}{x^{7/2}} \, dx=\int \frac {\left (A+B\,x\right )\,{\left (a+b\,x\right )}^{5/2}}{x^{7/2}} \,d x \]
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