Integrand size = 7, antiderivative size = 14 \[ \int (a+b x)^7 \, dx=\frac {(a+b x)^8}{8 b} \]
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Time = 0.00 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.143, Rules used = {32} \[ \int (a+b x)^7 \, dx=\frac {(a+b x)^8}{8 b} \]
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Rule 32
Rubi steps \begin{align*} \text {integral}& = \frac {(a+b x)^8}{8 b} \\ \end{align*}
Time = 0.00 (sec) , antiderivative size = 14, normalized size of antiderivative = 1.00 \[ \int (a+b x)^7 \, dx=\frac {(a+b x)^8}{8 b} \]
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Time = 0.17 (sec) , antiderivative size = 13, normalized size of antiderivative = 0.93
method | result | size |
default | \(\frac {\left (b x +a \right )^{8}}{8 b}\) | \(13\) |
gosper | \(\frac {1}{8} b^{7} x^{8}+a \,b^{6} x^{7}+\frac {7}{2} a^{2} b^{5} x^{6}+7 a^{3} b^{4} x^{5}+\frac {35}{4} a^{4} b^{3} x^{4}+7 a^{5} b^{2} x^{3}+\frac {7}{2} a^{6} b \,x^{2}+a^{7} x\) | \(76\) |
norman | \(\frac {1}{8} b^{7} x^{8}+a \,b^{6} x^{7}+\frac {7}{2} a^{2} b^{5} x^{6}+7 a^{3} b^{4} x^{5}+\frac {35}{4} a^{4} b^{3} x^{4}+7 a^{5} b^{2} x^{3}+\frac {7}{2} a^{6} b \,x^{2}+a^{7} x\) | \(76\) |
parallelrisch | \(\frac {1}{8} b^{7} x^{8}+a \,b^{6} x^{7}+\frac {7}{2} a^{2} b^{5} x^{6}+7 a^{3} b^{4} x^{5}+\frac {35}{4} a^{4} b^{3} x^{4}+7 a^{5} b^{2} x^{3}+\frac {7}{2} a^{6} b \,x^{2}+a^{7} x\) | \(76\) |
risch | \(\frac {b^{7} x^{8}}{8}+a \,b^{6} x^{7}+\frac {7 a^{2} b^{5} x^{6}}{2}+7 a^{3} b^{4} x^{5}+\frac {35 a^{4} b^{3} x^{4}}{4}+7 a^{5} b^{2} x^{3}+\frac {7 a^{6} b \,x^{2}}{2}+a^{7} x +\frac {a^{8}}{8 b}\) | \(84\) |
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Leaf count of result is larger than twice the leaf count of optimal. 75 vs. \(2 (12) = 24\).
Time = 0.23 (sec) , antiderivative size = 75, normalized size of antiderivative = 5.36 \[ \int (a+b x)^7 \, dx=\frac {1}{8} \, b^{7} x^{8} + a b^{6} x^{7} + \frac {7}{2} \, a^{2} b^{5} x^{6} + 7 \, a^{3} b^{4} x^{5} + \frac {35}{4} \, a^{4} b^{3} x^{4} + 7 \, a^{5} b^{2} x^{3} + \frac {7}{2} \, a^{6} b x^{2} + a^{7} x \]
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Leaf count of result is larger than twice the leaf count of optimal. 83 vs. \(2 (8) = 16\).
Time = 0.03 (sec) , antiderivative size = 83, normalized size of antiderivative = 5.93 \[ \int (a+b x)^7 \, dx=a^{7} x + \frac {7 a^{6} b x^{2}}{2} + 7 a^{5} b^{2} x^{3} + \frac {35 a^{4} b^{3} x^{4}}{4} + 7 a^{3} b^{4} x^{5} + \frac {7 a^{2} b^{5} x^{6}}{2} + a b^{6} x^{7} + \frac {b^{7} x^{8}}{8} \]
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none
Time = 0.23 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.86 \[ \int (a+b x)^7 \, dx=\frac {{\left (b x + a\right )}^{8}}{8 \, b} \]
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none
Time = 0.29 (sec) , antiderivative size = 12, normalized size of antiderivative = 0.86 \[ \int (a+b x)^7 \, dx=\frac {{\left (b x + a\right )}^{8}}{8 \, b} \]
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Time = 0.03 (sec) , antiderivative size = 75, normalized size of antiderivative = 5.36 \[ \int (a+b x)^7 \, dx=a^7\,x+\frac {7\,a^6\,b\,x^2}{2}+7\,a^5\,b^2\,x^3+\frac {35\,a^4\,b^3\,x^4}{4}+7\,a^3\,b^4\,x^5+\frac {7\,a^2\,b^5\,x^6}{2}+a\,b^6\,x^7+\frac {b^7\,x^8}{8} \]
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