Integrand size = 18, antiderivative size = 81 \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=-\frac {2 a^3 A}{5 x^{5/2}}-\frac {2 a^2 (3 A b+a B)}{3 x^{3/2}}-\frac {6 a b (A b+a B)}{\sqrt {x}}+2 b^2 (A b+3 a B) \sqrt {x}+\frac {2}{3} b^3 B x^{3/2} \]
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Time = 0.03 (sec) , antiderivative size = 81, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.056, Rules used = {77} \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=-\frac {2 a^3 A}{5 x^{5/2}}-\frac {2 a^2 (a B+3 A b)}{3 x^{3/2}}+2 b^2 \sqrt {x} (3 a B+A b)-\frac {6 a b (a B+A b)}{\sqrt {x}}+\frac {2}{3} b^3 B x^{3/2} \]
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Rule 77
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a^3 A}{x^{7/2}}+\frac {a^2 (3 A b+a B)}{x^{5/2}}+\frac {3 a b (A b+a B)}{x^{3/2}}+\frac {b^2 (A b+3 a B)}{\sqrt {x}}+b^3 B \sqrt {x}\right ) \, dx \\ & = -\frac {2 a^3 A}{5 x^{5/2}}-\frac {2 a^2 (3 A b+a B)}{3 x^{3/2}}-\frac {6 a b (A b+a B)}{\sqrt {x}}+2 b^2 (A b+3 a B) \sqrt {x}+\frac {2}{3} b^3 B x^{3/2} \\ \end{align*}
Time = 0.05 (sec) , antiderivative size = 65, normalized size of antiderivative = 0.80 \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=-\frac {2 \left (45 a b^2 x^2 (A-B x)-5 b^3 x^3 (3 A+B x)+15 a^2 b x (A+3 B x)+a^3 (3 A+5 B x)\right )}{15 x^{5/2}} \]
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Time = 1.06 (sec) , antiderivative size = 69, normalized size of antiderivative = 0.85
method | result | size |
derivativedivides | \(\frac {2 b^{3} B \,x^{\frac {3}{2}}}{3}+2 A \,b^{3} \sqrt {x}+6 B a \,b^{2} \sqrt {x}-\frac {2 a^{3} A}{5 x^{\frac {5}{2}}}-\frac {6 a b \left (A b +B a \right )}{\sqrt {x}}-\frac {2 a^{2} \left (3 A b +B a \right )}{3 x^{\frac {3}{2}}}\) | \(69\) |
default | \(\frac {2 b^{3} B \,x^{\frac {3}{2}}}{3}+2 A \,b^{3} \sqrt {x}+6 B a \,b^{2} \sqrt {x}-\frac {2 a^{3} A}{5 x^{\frac {5}{2}}}-\frac {6 a b \left (A b +B a \right )}{\sqrt {x}}-\frac {2 a^{2} \left (3 A b +B a \right )}{3 x^{\frac {3}{2}}}\) | \(69\) |
gosper | \(-\frac {2 \left (-5 b^{3} B \,x^{4}-15 A \,b^{3} x^{3}-45 B a \,b^{2} x^{3}+45 a A \,b^{2} x^{2}+45 B \,a^{2} b \,x^{2}+15 a^{2} A b x +5 a^{3} B x +3 a^{3} A \right )}{15 x^{\frac {5}{2}}}\) | \(76\) |
trager | \(-\frac {2 \left (-5 b^{3} B \,x^{4}-15 A \,b^{3} x^{3}-45 B a \,b^{2} x^{3}+45 a A \,b^{2} x^{2}+45 B \,a^{2} b \,x^{2}+15 a^{2} A b x +5 a^{3} B x +3 a^{3} A \right )}{15 x^{\frac {5}{2}}}\) | \(76\) |
risch | \(-\frac {2 \left (-5 b^{3} B \,x^{4}-15 A \,b^{3} x^{3}-45 B a \,b^{2} x^{3}+45 a A \,b^{2} x^{2}+45 B \,a^{2} b \,x^{2}+15 a^{2} A b x +5 a^{3} B x +3 a^{3} A \right )}{15 x^{\frac {5}{2}}}\) | \(76\) |
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Time = 0.23 (sec) , antiderivative size = 73, normalized size of antiderivative = 0.90 \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=\frac {2 \, {\left (5 \, B b^{3} x^{4} - 3 \, A a^{3} + 15 \, {\left (3 \, B a b^{2} + A b^{3}\right )} x^{3} - 45 \, {\left (B a^{2} b + A a b^{2}\right )} x^{2} - 5 \, {\left (B a^{3} + 3 \, A a^{2} b\right )} x\right )}}{15 \, x^{\frac {5}{2}}} \]
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Time = 0.31 (sec) , antiderivative size = 105, normalized size of antiderivative = 1.30 \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=- \frac {2 A a^{3}}{5 x^{\frac {5}{2}}} - \frac {2 A a^{2} b}{x^{\frac {3}{2}}} - \frac {6 A a b^{2}}{\sqrt {x}} + 2 A b^{3} \sqrt {x} - \frac {2 B a^{3}}{3 x^{\frac {3}{2}}} - \frac {6 B a^{2} b}{\sqrt {x}} + 6 B a b^{2} \sqrt {x} + \frac {2 B b^{3} x^{\frac {3}{2}}}{3} \]
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Time = 0.23 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.91 \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=\frac {2}{3} \, B b^{3} x^{\frac {3}{2}} + 2 \, {\left (3 \, B a b^{2} + A b^{3}\right )} \sqrt {x} - \frac {2 \, {\left (3 \, A a^{3} + 45 \, {\left (B a^{2} b + A a b^{2}\right )} x^{2} + 5 \, {\left (B a^{3} + 3 \, A a^{2} b\right )} x\right )}}{15 \, x^{\frac {5}{2}}} \]
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Time = 0.28 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.94 \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=\frac {2}{3} \, B b^{3} x^{\frac {3}{2}} + 6 \, B a b^{2} \sqrt {x} + 2 \, A b^{3} \sqrt {x} - \frac {2 \, {\left (45 \, B a^{2} b x^{2} + 45 \, A a b^{2} x^{2} + 5 \, B a^{3} x + 15 \, A a^{2} b x + 3 \, A a^{3}\right )}}{15 \, x^{\frac {5}{2}}} \]
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Time = 0.06 (sec) , antiderivative size = 75, normalized size of antiderivative = 0.93 \[ \int \frac {(a+b x)^3 (A+B x)}{x^{7/2}} \, dx=-\frac {10\,B\,a^3\,x+6\,A\,a^3+90\,B\,a^2\,b\,x^2+30\,A\,a^2\,b\,x-90\,B\,a\,b^2\,x^3+90\,A\,a\,b^2\,x^2-10\,B\,b^3\,x^4-30\,A\,b^3\,x^3}{15\,x^{5/2}} \]
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