Integrand size = 11, antiderivative size = 85 \[ \int \frac {(a+b x)^7}{x^7} \, dx=-\frac {a^7}{6 x^6}-\frac {7 a^6 b}{5 x^5}-\frac {21 a^5 b^2}{4 x^4}-\frac {35 a^4 b^3}{3 x^3}-\frac {35 a^3 b^4}{2 x^2}-\frac {21 a^2 b^5}{x}+b^7 x+7 a b^6 \log (x) \]
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Time = 0.02 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.091, Rules used = {45} \[ \int \frac {(a+b x)^7}{x^7} \, dx=-\frac {a^7}{6 x^6}-\frac {7 a^6 b}{5 x^5}-\frac {21 a^5 b^2}{4 x^4}-\frac {35 a^4 b^3}{3 x^3}-\frac {35 a^3 b^4}{2 x^2}-\frac {21 a^2 b^5}{x}+7 a b^6 \log (x)+b^7 x \]
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Rule 45
Rubi steps \begin{align*} \text {integral}& = \int \left (b^7+\frac {a^7}{x^7}+\frac {7 a^6 b}{x^6}+\frac {21 a^5 b^2}{x^5}+\frac {35 a^4 b^3}{x^4}+\frac {35 a^3 b^4}{x^3}+\frac {21 a^2 b^5}{x^2}+\frac {7 a b^6}{x}\right ) \, dx \\ & = -\frac {a^7}{6 x^6}-\frac {7 a^6 b}{5 x^5}-\frac {21 a^5 b^2}{4 x^4}-\frac {35 a^4 b^3}{3 x^3}-\frac {35 a^3 b^4}{2 x^2}-\frac {21 a^2 b^5}{x}+b^7 x+7 a b^6 \log (x) \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 85, normalized size of antiderivative = 1.00 \[ \int \frac {(a+b x)^7}{x^7} \, dx=-\frac {a^7}{6 x^6}-\frac {7 a^6 b}{5 x^5}-\frac {21 a^5 b^2}{4 x^4}-\frac {35 a^4 b^3}{3 x^3}-\frac {35 a^3 b^4}{2 x^2}-\frac {21 a^2 b^5}{x}+b^7 x+7 a b^6 \log (x) \]
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Time = 0.17 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.89
method | result | size |
default | \(-\frac {a^{7}}{6 x^{6}}-\frac {7 a^{6} b}{5 x^{5}}-\frac {21 a^{5} b^{2}}{4 x^{4}}-\frac {35 a^{4} b^{3}}{3 x^{3}}-\frac {35 a^{3} b^{4}}{2 x^{2}}-\frac {21 a^{2} b^{5}}{x}+b^{7} x +7 a \,b^{6} \ln \left (x \right )\) | \(76\) |
risch | \(b^{7} x +\frac {-21 a^{2} b^{5} x^{5}-\frac {35}{2} a^{3} b^{4} x^{4}-\frac {35}{3} a^{4} b^{3} x^{3}-\frac {21}{4} a^{5} b^{2} x^{2}-\frac {7}{5} a^{6} b x -\frac {1}{6} a^{7}}{x^{6}}+7 a \,b^{6} \ln \left (x \right )\) | \(76\) |
norman | \(\frac {b^{7} x^{7}-\frac {1}{6} a^{7}-21 a^{2} b^{5} x^{5}-\frac {35}{2} a^{3} b^{4} x^{4}-\frac {35}{3} a^{4} b^{3} x^{3}-\frac {21}{4} a^{5} b^{2} x^{2}-\frac {7}{5} a^{6} b x}{x^{6}}+7 a \,b^{6} \ln \left (x \right )\) | \(78\) |
parallelrisch | \(\frac {420 a \,b^{6} \ln \left (x \right ) x^{6}+60 b^{7} x^{7}-1260 a^{2} b^{5} x^{5}-1050 a^{3} b^{4} x^{4}-700 a^{4} b^{3} x^{3}-315 a^{5} b^{2} x^{2}-84 a^{6} b x -10 a^{7}}{60 x^{6}}\) | \(82\) |
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Time = 0.21 (sec) , antiderivative size = 81, normalized size of antiderivative = 0.95 \[ \int \frac {(a+b x)^7}{x^7} \, dx=\frac {60 \, b^{7} x^{7} + 420 \, a b^{6} x^{6} \log \left (x\right ) - 1260 \, a^{2} b^{5} x^{5} - 1050 \, a^{3} b^{4} x^{4} - 700 \, a^{4} b^{3} x^{3} - 315 \, a^{5} b^{2} x^{2} - 84 \, a^{6} b x - 10 \, a^{7}}{60 \, x^{6}} \]
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Time = 0.24 (sec) , antiderivative size = 82, normalized size of antiderivative = 0.96 \[ \int \frac {(a+b x)^7}{x^7} \, dx=7 a b^{6} \log {\left (x \right )} + b^{7} x + \frac {- 10 a^{7} - 84 a^{6} b x - 315 a^{5} b^{2} x^{2} - 700 a^{4} b^{3} x^{3} - 1050 a^{3} b^{4} x^{4} - 1260 a^{2} b^{5} x^{5}}{60 x^{6}} \]
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Time = 0.20 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.89 \[ \int \frac {(a+b x)^7}{x^7} \, dx=b^{7} x + 7 \, a b^{6} \log \left (x\right ) - \frac {1260 \, a^{2} b^{5} x^{5} + 1050 \, a^{3} b^{4} x^{4} + 700 \, a^{4} b^{3} x^{3} + 315 \, a^{5} b^{2} x^{2} + 84 \, a^{6} b x + 10 \, a^{7}}{60 \, x^{6}} \]
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Time = 0.30 (sec) , antiderivative size = 77, normalized size of antiderivative = 0.91 \[ \int \frac {(a+b x)^7}{x^7} \, dx=b^{7} x + 7 \, a b^{6} \log \left ({\left | x \right |}\right ) - \frac {1260 \, a^{2} b^{5} x^{5} + 1050 \, a^{3} b^{4} x^{4} + 700 \, a^{4} b^{3} x^{3} + 315 \, a^{5} b^{2} x^{2} + 84 \, a^{6} b x + 10 \, a^{7}}{60 \, x^{6}} \]
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Time = 0.08 (sec) , antiderivative size = 81, normalized size of antiderivative = 0.95 \[ \int \frac {(a+b x)^7}{x^7} \, dx=-\frac {10\,a^7-60\,b^7\,x^7+315\,a^5\,b^2\,x^2+700\,a^4\,b^3\,x^3+1050\,a^3\,b^4\,x^4+1260\,a^2\,b^5\,x^5+84\,a^6\,b\,x-420\,a\,b^6\,x^6\,\ln \left (x\right )}{60\,x^6} \]
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