Integrand size = 18, antiderivative size = 173 \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=-\frac {b d-2 a e+(2 c d-b e) x}{3 \left (b^2-4 a c\right ) \left (a+b x+c x^2\right )^3}+\frac {5 (2 c d-b e) (b+2 c x)}{6 \left (b^2-4 a c\right )^2 \left (a+b x+c x^2\right )^2}-\frac {5 c (2 c d-b e) (b+2 c x)}{\left (b^2-4 a c\right )^3 \left (a+b x+c x^2\right )}+\frac {20 c^2 (2 c d-b e) \text {arctanh}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )}{\left (b^2-4 a c\right )^{7/2}} \]
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Time = 0.05 (sec) , antiderivative size = 173, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.222, Rules used = {652, 628, 632, 212} \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=\frac {20 c^2 (2 c d-b e) \text {arctanh}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )}{\left (b^2-4 a c\right )^{7/2}}-\frac {5 c (b+2 c x) (2 c d-b e)}{\left (b^2-4 a c\right )^3 \left (a+b x+c x^2\right )}+\frac {5 (b+2 c x) (2 c d-b e)}{6 \left (b^2-4 a c\right )^2 \left (a+b x+c x^2\right )^2}-\frac {-2 a e+x (2 c d-b e)+b d}{3 \left (b^2-4 a c\right ) \left (a+b x+c x^2\right )^3} \]
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Rule 212
Rule 628
Rule 632
Rule 652
Rubi steps \begin{align*} \text {integral}& = -\frac {b d-2 a e+(2 c d-b e) x}{3 \left (b^2-4 a c\right ) \left (a+b x+c x^2\right )^3}-\frac {(5 (2 c d-b e)) \int \frac {1}{\left (a+b x+c x^2\right )^3} \, dx}{3 \left (b^2-4 a c\right )} \\ & = -\frac {b d-2 a e+(2 c d-b e) x}{3 \left (b^2-4 a c\right ) \left (a+b x+c x^2\right )^3}+\frac {5 (2 c d-b e) (b+2 c x)}{6 \left (b^2-4 a c\right )^2 \left (a+b x+c x^2\right )^2}+\frac {(5 c (2 c d-b e)) \int \frac {1}{\left (a+b x+c x^2\right )^2} \, dx}{\left (b^2-4 a c\right )^2} \\ & = -\frac {b d-2 a e+(2 c d-b e) x}{3 \left (b^2-4 a c\right ) \left (a+b x+c x^2\right )^3}+\frac {5 (2 c d-b e) (b+2 c x)}{6 \left (b^2-4 a c\right )^2 \left (a+b x+c x^2\right )^2}-\frac {5 c (2 c d-b e) (b+2 c x)}{\left (b^2-4 a c\right )^3 \left (a+b x+c x^2\right )}-\frac {\left (10 c^2 (2 c d-b e)\right ) \int \frac {1}{a+b x+c x^2} \, dx}{\left (b^2-4 a c\right )^3} \\ & = -\frac {b d-2 a e+(2 c d-b e) x}{3 \left (b^2-4 a c\right ) \left (a+b x+c x^2\right )^3}+\frac {5 (2 c d-b e) (b+2 c x)}{6 \left (b^2-4 a c\right )^2 \left (a+b x+c x^2\right )^2}-\frac {5 c (2 c d-b e) (b+2 c x)}{\left (b^2-4 a c\right )^3 \left (a+b x+c x^2\right )}+\frac {\left (20 c^2 (2 c d-b e)\right ) \text {Subst}\left (\int \frac {1}{b^2-4 a c-x^2} \, dx,x,b+2 c x\right )}{\left (b^2-4 a c\right )^3} \\ & = -\frac {b d-2 a e+(2 c d-b e) x}{3 \left (b^2-4 a c\right ) \left (a+b x+c x^2\right )^3}+\frac {5 (2 c d-b e) (b+2 c x)}{6 \left (b^2-4 a c\right )^2 \left (a+b x+c x^2\right )^2}-\frac {5 c (2 c d-b e) (b+2 c x)}{\left (b^2-4 a c\right )^3 \left (a+b x+c x^2\right )}+\frac {20 c^2 (2 c d-b e) \tanh ^{-1}\left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right )}{\left (b^2-4 a c\right )^{7/2}} \\ \end{align*}
Time = 0.12 (sec) , antiderivative size = 168, normalized size of antiderivative = 0.97 \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=\frac {\frac {2 \left (b^2-4 a c\right )^2 (-b d+2 a e-2 c d x+b e x)}{(a+x (b+c x))^3}-\frac {5 \left (b^2-4 a c\right ) (-2 c d+b e) (b+2 c x)}{(a+x (b+c x))^2}+\frac {30 c (-2 c d+b e) (b+2 c x)}{a+x (b+c x)}+\frac {120 c^2 (-2 c d+b e) \arctan \left (\frac {b+2 c x}{\sqrt {-b^2+4 a c}}\right )}{\sqrt {-b^2+4 a c}}}{6 \left (b^2-4 a c\right )^3} \]
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Time = 17.15 (sec) , antiderivative size = 185, normalized size of antiderivative = 1.07
method | result | size |
default | \(\frac {b d -2 a e +\left (-b e +2 c d \right ) x}{3 \left (4 a c -b^{2}\right ) \left (c \,x^{2}+b x +a \right )^{3}}+\frac {5 \left (-b e +2 c d \right ) \left (\frac {2 c x +b}{2 \left (4 a c -b^{2}\right ) \left (c \,x^{2}+b x +a \right )^{2}}+\frac {3 c \left (\frac {2 c x +b}{\left (4 a c -b^{2}\right ) \left (c \,x^{2}+b x +a \right )}+\frac {4 c \arctan \left (\frac {2 c x +b}{\sqrt {4 a c -b^{2}}}\right )}{\left (4 a c -b^{2}\right )^{\frac {3}{2}}}\right )}{4 a c -b^{2}}\right )}{3 \left (4 a c -b^{2}\right )}\) | \(185\) |
risch | \(\frac {-\frac {10 c^{4} \left (b e -2 c d \right ) x^{5}}{64 c^{3} a^{3}-48 a^{2} b^{2} c^{2}+12 a \,b^{4} c -b^{6}}-\frac {25 c^{3} \left (b e -2 c d \right ) b \,x^{4}}{64 c^{3} a^{3}-48 a^{2} b^{2} c^{2}+12 a \,b^{4} c -b^{6}}-\frac {5 \left (16 a c +11 b^{2}\right ) c^{2} \left (b e -2 c d \right ) x^{3}}{3 \left (64 c^{3} a^{3}-48 a^{2} b^{2} c^{2}+12 a \,b^{4} c -b^{6}\right )}-\frac {5 b \left (16 a c +b^{2}\right ) c \left (b e -2 c d \right ) x^{2}}{2 \left (64 c^{3} a^{3}-48 a^{2} b^{2} c^{2}+12 a \,b^{4} c -b^{6}\right )}-\frac {\left (44 a^{2} b \,c^{2} e -88 a^{2} c^{3} d +18 a \,b^{3} c e -36 a \,b^{2} c^{2} d -b^{5} e +2 b^{4} c d \right ) x}{2 \left (64 c^{3} a^{3}-48 a^{2} b^{2} c^{2}+12 a \,b^{4} c -b^{6}\right )}-\frac {64 a^{3} c^{2} e +18 a^{2} b^{2} c e -132 a^{2} b \,c^{2} d -e a \,b^{4}+26 a \,b^{3} c d -2 b^{5} d}{6 \left (64 c^{3} a^{3}-48 a^{2} b^{2} c^{2}+12 a \,b^{4} c -b^{6}\right )}}{\left (c \,x^{2}+b x +a \right )^{3}}+\frac {10 c^{2} \ln \left (\left (-128 a^{3} c^{4}+96 a^{2} b^{2} c^{3}-24 c^{2} a \,b^{4}+2 b^{6} c \right ) x -\left (-4 a c +b^{2}\right )^{\frac {7}{2}}-64 a^{3} c^{3} b +48 a^{2} c^{2} b^{3}-12 a \,b^{5} c +b^{7}\right ) b e}{\left (-4 a c +b^{2}\right )^{\frac {7}{2}}}-\frac {20 c^{3} \ln \left (\left (-128 a^{3} c^{4}+96 a^{2} b^{2} c^{3}-24 c^{2} a \,b^{4}+2 b^{6} c \right ) x -\left (-4 a c +b^{2}\right )^{\frac {7}{2}}-64 a^{3} c^{3} b +48 a^{2} c^{2} b^{3}-12 a \,b^{5} c +b^{7}\right ) d}{\left (-4 a c +b^{2}\right )^{\frac {7}{2}}}-\frac {10 c^{2} \ln \left (\left (128 a^{3} c^{4}-96 a^{2} b^{2} c^{3}+24 c^{2} a \,b^{4}-2 b^{6} c \right ) x -\left (-4 a c +b^{2}\right )^{\frac {7}{2}}+64 a^{3} c^{3} b -48 a^{2} c^{2} b^{3}+12 a \,b^{5} c -b^{7}\right ) b e}{\left (-4 a c +b^{2}\right )^{\frac {7}{2}}}+\frac {20 c^{3} \ln \left (\left (128 a^{3} c^{4}-96 a^{2} b^{2} c^{3}+24 c^{2} a \,b^{4}-2 b^{6} c \right ) x -\left (-4 a c +b^{2}\right )^{\frac {7}{2}}+64 a^{3} c^{3} b -48 a^{2} c^{2} b^{3}+12 a \,b^{5} c -b^{7}\right ) d}{\left (-4 a c +b^{2}\right )^{\frac {7}{2}}}\) | \(803\) |
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Leaf count of result is larger than twice the leaf count of optimal. 970 vs. \(2 (165) = 330\).
Time = 0.34 (sec) , antiderivative size = 1960, normalized size of antiderivative = 11.33 \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=\text {Too large to display} \]
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Leaf count of result is larger than twice the leaf count of optimal. 1062 vs. \(2 (170) = 340\).
Time = 1.63 (sec) , antiderivative size = 1062, normalized size of antiderivative = 6.14 \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=10 c^{2} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) \log {\left (x + \frac {- 2560 a^{4} c^{6} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) + 2560 a^{3} b^{2} c^{5} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) - 960 a^{2} b^{4} c^{4} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) + 160 a b^{6} c^{3} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) - 10 b^{8} c^{2} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) + 10 b^{2} c^{2} e - 20 b c^{3} d}{20 b c^{3} e - 40 c^{4} d} \right )} - 10 c^{2} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) \log {\left (x + \frac {2560 a^{4} c^{6} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) - 2560 a^{3} b^{2} c^{5} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) + 960 a^{2} b^{4} c^{4} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) - 160 a b^{6} c^{3} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) + 10 b^{8} c^{2} \sqrt {- \frac {1}{\left (4 a c - b^{2}\right )^{7}}} \left (b e - 2 c d\right ) + 10 b^{2} c^{2} e - 20 b c^{3} d}{20 b c^{3} e - 40 c^{4} d} \right )} + \frac {- 64 a^{3} c^{2} e - 18 a^{2} b^{2} c e + 132 a^{2} b c^{2} d + a b^{4} e - 26 a b^{3} c d + 2 b^{5} d + x^{5} \left (- 60 b c^{4} e + 120 c^{5} d\right ) + x^{4} \left (- 150 b^{2} c^{3} e + 300 b c^{4} d\right ) + x^{3} \left (- 160 a b c^{3} e + 320 a c^{4} d - 110 b^{3} c^{2} e + 220 b^{2} c^{3} d\right ) + x^{2} \left (- 240 a b^{2} c^{2} e + 480 a b c^{3} d - 15 b^{4} c e + 30 b^{3} c^{2} d\right ) + x \left (- 132 a^{2} b c^{2} e + 264 a^{2} c^{3} d - 54 a b^{3} c e + 108 a b^{2} c^{2} d + 3 b^{5} e - 6 b^{4} c d\right )}{384 a^{6} c^{3} - 288 a^{5} b^{2} c^{2} + 72 a^{4} b^{4} c - 6 a^{3} b^{6} + x^{6} \cdot \left (384 a^{3} c^{6} - 288 a^{2} b^{2} c^{5} + 72 a b^{4} c^{4} - 6 b^{6} c^{3}\right ) + x^{5} \cdot \left (1152 a^{3} b c^{5} - 864 a^{2} b^{3} c^{4} + 216 a b^{5} c^{3} - 18 b^{7} c^{2}\right ) + x^{4} \cdot \left (1152 a^{4} c^{5} + 288 a^{3} b^{2} c^{4} - 648 a^{2} b^{4} c^{3} + 198 a b^{6} c^{2} - 18 b^{8} c\right ) + x^{3} \cdot \left (2304 a^{4} b c^{4} - 1344 a^{3} b^{3} c^{3} + 144 a^{2} b^{5} c^{2} + 36 a b^{7} c - 6 b^{9}\right ) + x^{2} \cdot \left (1152 a^{5} c^{4} + 288 a^{4} b^{2} c^{3} - 648 a^{3} b^{4} c^{2} + 198 a^{2} b^{6} c - 18 a b^{8}\right ) + x \left (1152 a^{5} b c^{3} - 864 a^{4} b^{3} c^{2} + 216 a^{3} b^{5} c - 18 a^{2} b^{7}\right )} \]
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Exception generated. \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=\text {Exception raised: ValueError} \]
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Leaf count of result is larger than twice the leaf count of optimal. 365 vs. \(2 (165) = 330\).
Time = 0.30 (sec) , antiderivative size = 365, normalized size of antiderivative = 2.11 \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=-\frac {20 \, {\left (2 \, c^{3} d - b c^{2} e\right )} \arctan \left (\frac {2 \, c x + b}{\sqrt {-b^{2} + 4 \, a c}}\right )}{{\left (b^{6} - 12 \, a b^{4} c + 48 \, a^{2} b^{2} c^{2} - 64 \, a^{3} c^{3}\right )} \sqrt {-b^{2} + 4 \, a c}} - \frac {120 \, c^{5} d x^{5} - 60 \, b c^{4} e x^{5} + 300 \, b c^{4} d x^{4} - 150 \, b^{2} c^{3} e x^{4} + 220 \, b^{2} c^{3} d x^{3} + 320 \, a c^{4} d x^{3} - 110 \, b^{3} c^{2} e x^{3} - 160 \, a b c^{3} e x^{3} + 30 \, b^{3} c^{2} d x^{2} + 480 \, a b c^{3} d x^{2} - 15 \, b^{4} c e x^{2} - 240 \, a b^{2} c^{2} e x^{2} - 6 \, b^{4} c d x + 108 \, a b^{2} c^{2} d x + 264 \, a^{2} c^{3} d x + 3 \, b^{5} e x - 54 \, a b^{3} c e x - 132 \, a^{2} b c^{2} e x + 2 \, b^{5} d - 26 \, a b^{3} c d + 132 \, a^{2} b c^{2} d + a b^{4} e - 18 \, a^{2} b^{2} c e - 64 \, a^{3} c^{2} e}{6 \, {\left (b^{6} - 12 \, a b^{4} c + 48 \, a^{2} b^{2} c^{2} - 64 \, a^{3} c^{3}\right )} {\left (c x^{2} + b x + a\right )}^{3}} \]
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Time = 10.11 (sec) , antiderivative size = 633, normalized size of antiderivative = 3.66 \[ \int \frac {d+e x}{\left (a+b x+c x^2\right )^4} \, dx=\frac {\frac {10\,c^4\,x^5\,\left (b\,e-2\,c\,d\right )}{-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6}-\frac {-64\,e\,a^3\,c^2-18\,e\,a^2\,b^2\,c+132\,d\,a^2\,b\,c^2+e\,a\,b^4-26\,d\,a\,b^3\,c+2\,d\,b^5}{6\,\left (-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6\right )}+\frac {x\,\left (b\,e-2\,c\,d\right )\,\left (44\,a^2\,c^2+18\,a\,b^2\,c-b^4\right )}{2\,\left (-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6\right )}+\frac {5\,c\,x^3\,\left (11\,b^2\,c+16\,a\,c^2\right )\,\left (b\,e-2\,c\,d\right )}{3\,\left (-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6\right )}+\frac {5\,c\,x^2\,\left (b^3+16\,a\,c\,b\right )\,\left (b\,e-2\,c\,d\right )}{2\,\left (-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6\right )}+\frac {25\,b\,c^3\,x^4\,\left (b\,e-2\,c\,d\right )}{-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6}}{x^2\,\left (3\,c\,a^2+3\,a\,b^2\right )+x^4\,\left (3\,b^2\,c+3\,a\,c^2\right )+a^3+x^3\,\left (b^3+6\,a\,c\,b\right )+c^3\,x^6+3\,b\,c^2\,x^5+3\,a^2\,b\,x}-\frac {20\,c^2\,\mathrm {atan}\left (\frac {\left (\frac {20\,c^3\,x\,\left (b\,e-2\,c\,d\right )}{{\left (4\,a\,c-b^2\right )}^{7/2}}+\frac {10\,c^2\,\left (b\,e-2\,c\,d\right )\,\left (-64\,a^3\,b\,c^3+48\,a^2\,b^3\,c^2-12\,a\,b^5\,c+b^7\right )}{{\left (4\,a\,c-b^2\right )}^{7/2}\,\left (-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6\right )}\right )\,\left (-64\,a^3\,c^3+48\,a^2\,b^2\,c^2-12\,a\,b^4\,c+b^6\right )}{20\,c^3\,d-10\,b\,c^2\,e}\right )\,\left (b\,e-2\,c\,d\right )}{{\left (4\,a\,c-b^2\right )}^{7/2}} \]
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