Integrand size = 46, antiderivative size = 90 \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=(f-3 g+7 h-15 i) x+\frac {1}{2} (g-3 h+7 i) x^2+\frac {1}{3} (h-3 i) x^3+\frac {i x^4}{4}+(d-e+f-g+h-i) \log (1+x)-(d-2 e+4 f-8 g+16 h-32 i) \log (2+x) \]
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Time = 0.07 (sec) , antiderivative size = 90, normalized size of antiderivative = 1.00, number of steps used = 6, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.087, Rules used = {1600, 1671, 646, 31} \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=\log (x+1) (d-e+f-g+h-i)-\log (x+2) (d-2 e+4 f-8 g+16 h-32 i)+x (f-3 g+7 h-15 i)+\frac {1}{2} x^2 (g-3 h+7 i)+\frac {1}{3} x^3 (h-3 i)+\frac {i x^4}{4} \]
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Rule 31
Rule 646
Rule 1600
Rule 1671
Rubi steps \begin{align*} \text {integral}& = \int \frac {d+e x+f x^2+g x^3+h x^4+i x^5}{2+3 x+x^2} \, dx \\ & = \int \left (f-3 g+7 h-15 i+(g-3 h+7 i) x+(h-3 i) x^2+i x^3+\frac {d-2 f+6 g-14 h+30 i+(e-3 f+7 g-15 h+31 i) x}{2+3 x+x^2}\right ) \, dx \\ & = (f-3 g+7 h-15 i) x+\frac {1}{2} (g-3 h+7 i) x^2+\frac {1}{3} (h-3 i) x^3+\frac {i x^4}{4}+\int \frac {d-2 f+6 g-14 h+30 i+(e-3 f+7 g-15 h+31 i) x}{2+3 x+x^2} \, dx \\ & = (f-3 g+7 h-15 i) x+\frac {1}{2} (g-3 h+7 i) x^2+\frac {1}{3} (h-3 i) x^3+\frac {i x^4}{4}-(d-2 e+4 f-8 g+16 h-32 i) \int \frac {1}{2+x} \, dx+(d-e+f-g+h-i) \int \frac {1}{1+x} \, dx \\ & = (f-3 g+7 h-15 i) x+\frac {1}{2} (g-3 h+7 i) x^2+\frac {1}{3} (h-3 i) x^3+\frac {i x^4}{4}+(d-e+f-g+h-i) \log (1+x)-(d-2 e+4 f-8 g+16 h-32 i) \log (2+x) \\ \end{align*}
Time = 0.03 (sec) , antiderivative size = 91, normalized size of antiderivative = 1.01 \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=(f-3 g+7 h-15 i) x+\frac {1}{2} (g-3 h+7 i) x^2+\frac {1}{3} (h-3 i) x^3+\frac {i x^4}{4}+(d-e+f-g+h-i) \log (1+x)+(-d+2 e-4 f+8 g-16 h+32 i) \log (2+x) \]
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Time = 0.06 (sec) , antiderivative size = 88, normalized size of antiderivative = 0.98
method | result | size |
norman | \(\left (\frac {h}{3}-i \right ) x^{3}+\left (\frac {g}{2}-\frac {3 h}{2}+\frac {7 i}{2}\right ) x^{2}+\left (f -3 g +7 h -15 i \right ) x +\frac {i \,x^{4}}{4}+\left (-d +2 e -4 f +8 g -16 h +32 i \right ) \ln \left (x +2\right )+\left (d -e +f -g +h -i \right ) \ln \left (x +1\right )\) | \(88\) |
default | \(\frac {i \,x^{4}}{4}+\frac {h \,x^{3}}{3}-i \,x^{3}+\frac {g \,x^{2}}{2}-\frac {3 h \,x^{2}}{2}+\frac {7 i \,x^{2}}{2}+f x -3 g x +7 h x -15 i x +\left (-d +2 e -4 f +8 g -16 h +32 i \right ) \ln \left (x +2\right )+\left (d -e +f -g +h -i \right ) \ln \left (x +1\right )\) | \(95\) |
parallelrisch | \(\frac {i \,x^{4}}{4}+\frac {h \,x^{3}}{3}-i \,x^{3}+\frac {g \,x^{2}}{2}-\frac {3 h \,x^{2}}{2}+\frac {7 i \,x^{2}}{2}+f x -3 g x +7 h x -15 i x +\ln \left (x +1\right ) d -\ln \left (x +1\right ) e +\ln \left (x +1\right ) f -\ln \left (x +1\right ) g +\ln \left (x +1\right ) h -\ln \left (x +1\right ) i -\ln \left (x +2\right ) d +2 \ln \left (x +2\right ) e -4 \ln \left (x +2\right ) f +8 \ln \left (x +2\right ) g -16 \ln \left (x +2\right ) h +32 \ln \left (x +2\right ) i\) | \(134\) |
risch | \(\frac {i \,x^{4}}{4}+\frac {h \,x^{3}}{3}-i \,x^{3}+\frac {g \,x^{2}}{2}-\frac {3 h \,x^{2}}{2}+\frac {7 i \,x^{2}}{2}+f x -3 g x +7 h x -15 i x +\ln \left (-x -1\right ) d -\ln \left (-x -1\right ) e +\ln \left (-x -1\right ) f -\ln \left (-x -1\right ) g +\ln \left (-x -1\right ) h -\ln \left (-x -1\right ) i -\ln \left (x +2\right ) d +2 \ln \left (x +2\right ) e -4 \ln \left (x +2\right ) f +8 \ln \left (x +2\right ) g -16 \ln \left (x +2\right ) h +32 \ln \left (x +2\right ) i\) | \(146\) |
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Time = 0.25 (sec) , antiderivative size = 84, normalized size of antiderivative = 0.93 \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=\frac {1}{4} \, i x^{4} + \frac {1}{3} \, {\left (h - 3 \, i\right )} x^{3} + \frac {1}{2} \, {\left (g - 3 \, h + 7 \, i\right )} x^{2} + {\left (f - 3 \, g + 7 \, h - 15 \, i\right )} x - {\left (d - 2 \, e + 4 \, f - 8 \, g + 16 \, h - 32 \, i\right )} \log \left (x + 2\right ) + {\left (d - e + f - g + h - i\right )} \log \left (x + 1\right ) \]
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Time = 1.39 (sec) , antiderivative size = 122, normalized size of antiderivative = 1.36 \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=\frac {i x^{4}}{4} + x^{3} \left (\frac {h}{3} - i\right ) + x^{2} \left (\frac {g}{2} - \frac {3 h}{2} + \frac {7 i}{2}\right ) + x \left (f - 3 g + 7 h - 15 i\right ) + \left (- d + 2 e - 4 f + 8 g - 16 h + 32 i\right ) \log {\left (x + \frac {4 d - 6 e + 10 f - 18 g + 34 h - 66 i}{2 d - 3 e + 5 f - 9 g + 17 h - 33 i} \right )} + \left (d - e + f - g + h - i\right ) \log {\left (x + 1 \right )} \]
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Time = 0.18 (sec) , antiderivative size = 84, normalized size of antiderivative = 0.93 \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=\frac {1}{4} \, i x^{4} + \frac {1}{3} \, {\left (h - 3 \, i\right )} x^{3} + \frac {1}{2} \, {\left (g - 3 \, h + 7 \, i\right )} x^{2} + {\left (f - 3 \, g + 7 \, h - 15 \, i\right )} x - {\left (d - 2 \, e + 4 \, f - 8 \, g + 16 \, h - 32 \, i\right )} \log \left (x + 2\right ) + {\left (d - e + f - g + h - i\right )} \log \left (x + 1\right ) \]
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Time = 0.30 (sec) , antiderivative size = 95, normalized size of antiderivative = 1.06 \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=\frac {1}{4} \, i x^{4} + \frac {1}{3} \, h x^{3} - i x^{3} + \frac {1}{2} \, g x^{2} - \frac {3}{2} \, h x^{2} + \frac {7}{2} \, i x^{2} + f x - 3 \, g x + 7 \, h x - 15 \, i x - {\left (d - 2 \, e + 4 \, f - 8 \, g + 16 \, h - 32 \, i\right )} \log \left ({\left | x + 2 \right |}\right ) + {\left (d - e + f - g + h - i\right )} \log \left ({\left | x + 1 \right |}\right ) \]
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Time = 0.05 (sec) , antiderivative size = 86, normalized size of antiderivative = 0.96 \[ \int \frac {\left (2-3 x+x^2\right ) \left (d+e x+f x^2+g x^3+h x^4+i x^5\right )}{4-5 x^2+x^4} \, dx=x^3\,\left (\frac {h}{3}-i\right )-\ln \left (x+2\right )\,\left (d-2\,e+4\,f-8\,g+16\,h-32\,i\right )+\ln \left (x+1\right )\,\left (d-e+f-g+h-i\right )+\frac {i\,x^4}{4}+x^2\,\left (\frac {g}{2}-\frac {3\,h}{2}+\frac {7\,i}{2}\right )+x\,\left (f-3\,g+7\,h-15\,i\right ) \]
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