Integrand size = 22, antiderivative size = 17 \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx=\frac {1}{3} d \left (a+b x+c x^2\right )^3 \]
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Time = 0.00 (sec) , antiderivative size = 17, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.045, Rules used = {643} \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx=\frac {1}{3} d \left (a+b x+c x^2\right )^3 \]
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Rule 643
Rubi steps \begin{align*} \text {integral}& = \frac {1}{3} d \left (a+b x+c x^2\right )^3 \\ \end{align*}
Leaf count is larger than twice the leaf count of optimal. \(37\) vs. \(2(17)=34\).
Time = 0.01 (sec) , antiderivative size = 37, normalized size of antiderivative = 2.18 \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx=\frac {1}{3} d x (b+c x) \left (3 a^2+3 a x (b+c x)+x^2 (b+c x)^2\right ) \]
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Time = 3.06 (sec) , antiderivative size = 16, normalized size of antiderivative = 0.94
method | result | size |
default | \(\frac {d \left (c \,x^{2}+b x +a \right )^{3}}{3}\) | \(16\) |
gosper | \(\frac {d x \left (c^{3} x^{5}+3 b \,c^{2} x^{4}+3 a \,c^{2} x^{3}+3 b^{2} c \,x^{3}+6 a b c \,x^{2}+b^{3} x^{2}+3 a^{2} c x +3 a \,b^{2} x +3 a^{2} b \right )}{3}\) | \(75\) |
norman | \(\left (2 a b c d +\frac {1}{3} b^{3} d \right ) x^{3}+\left (a \,c^{2} d +b^{2} c d \right ) x^{4}+\left (a^{2} c d +a \,b^{2} d \right ) x^{2}+a^{2} b d x +b \,c^{2} d \,x^{5}+\frac {c^{3} d \,x^{6}}{3}\) | \(78\) |
parallelrisch | \(\frac {1}{3} c^{3} d \,x^{6}+b \,c^{2} d \,x^{5}+a \,c^{2} d \,x^{4}+b^{2} c d \,x^{4}+2 x^{3} b d a c +\frac {1}{3} b^{3} d \,x^{3}+a^{2} c d \,x^{2}+a \,b^{2} d \,x^{2}+a^{2} b d x\) | \(81\) |
risch | \(\frac {1}{3} c^{3} d \,x^{6}+b \,c^{2} d \,x^{5}+a \,c^{2} d \,x^{4}+b^{2} c d \,x^{4}+2 x^{3} b d a c +\frac {1}{3} b^{3} d \,x^{3}+a^{2} c d \,x^{2}+a \,b^{2} d \,x^{2}+a^{2} b d x +\frac {1}{3} a^{3} d\) | \(87\) |
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Leaf count of result is larger than twice the leaf count of optimal. 73 vs. \(2 (15) = 30\).
Time = 0.26 (sec) , antiderivative size = 73, normalized size of antiderivative = 4.29 \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx=\frac {1}{3} \, c^{3} d x^{6} + b c^{2} d x^{5} + {\left (b^{2} c + a c^{2}\right )} d x^{4} + a^{2} b d x + \frac {1}{3} \, {\left (b^{3} + 6 \, a b c\right )} d x^{3} + {\left (a b^{2} + a^{2} c\right )} d x^{2} \]
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Leaf count of result is larger than twice the leaf count of optimal. 80 vs. \(2 (14) = 28\).
Time = 0.03 (sec) , antiderivative size = 80, normalized size of antiderivative = 4.71 \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx=a^{2} b d x + b c^{2} d x^{5} + \frac {c^{3} d x^{6}}{3} + x^{4} \left (a c^{2} d + b^{2} c d\right ) + x^{3} \cdot \left (2 a b c d + \frac {b^{3} d}{3}\right ) + x^{2} \left (a^{2} c d + a b^{2} d\right ) \]
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none
Time = 0.20 (sec) , antiderivative size = 15, normalized size of antiderivative = 0.88 \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx=\frac {1}{3} \, {\left (c x^{2} + b x + a\right )}^{3} d \]
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Leaf count of result is larger than twice the leaf count of optimal. 52 vs. \(2 (15) = 30\).
Time = 0.27 (sec) , antiderivative size = 52, normalized size of antiderivative = 3.06 \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx={\left (c d x^{2} + b d x\right )} a^{2} + \frac {3 \, {\left (c d x^{2} + b d x\right )}^{2} a d + {\left (c d x^{2} + b d x\right )}^{3}}{3 \, d^{2}} \]
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Time = 9.89 (sec) , antiderivative size = 67, normalized size of antiderivative = 3.94 \[ \int (b d+2 c d x) \left (a+b x+c x^2\right )^2 \, dx=\frac {c^3\,d\,x^6}{3}+a\,d\,x^2\,\left (b^2+a\,c\right )+\frac {b\,d\,x^3\,\left (b^2+6\,a\,c\right )}{3}+c\,d\,x^4\,\left (b^2+a\,c\right )+a^2\,b\,d\,x+b\,c^2\,d\,x^5 \]
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