Integrand size = 29, antiderivative size = 148 \[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=\frac {\sqrt [4]{-b x^3+a x^4} \left (160 a b^2 d-32 a^2 b d x-128 a^3 d x^2-45 b^3 c x^3+180 a b^2 c x^4\right )}{360 a b^2 x^3}+\frac {3 b^2 c \arctan \left (\frac {\sqrt [4]{a} x}{\sqrt [4]{-b x^3+a x^4}}\right )}{16 a^{7/4}}-\frac {3 b^2 c \text {arctanh}\left (\frac {\sqrt [4]{a} x}{\sqrt [4]{-b x^3+a x^4}}\right )}{16 a^{7/4}} \]
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Time = 0.25 (sec) , antiderivative size = 239, normalized size of antiderivative = 1.61, number of steps used = 12, number of rules used = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.379, Rules used = {2077, 2029, 2049, 2057, 65, 338, 304, 209, 212, 2041, 2039} \[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=\frac {3 b^2 c x^{9/4} (a x-b)^{3/4} \arctan \left (\frac {\sqrt [4]{a} \sqrt [4]{x}}{\sqrt [4]{a x-b}}\right )}{16 a^{7/4} \left (a x^4-b x^3\right )^{3/4}}-\frac {3 b^2 c x^{9/4} (a x-b)^{3/4} \text {arctanh}\left (\frac {\sqrt [4]{a} \sqrt [4]{x}}{\sqrt [4]{a x-b}}\right )}{16 a^{7/4} \left (a x^4-b x^3\right )^{3/4}}-\frac {16 a d \left (a x^4-b x^3\right )^{5/4}}{45 b^2 x^5}+\frac {1}{2} c x \sqrt [4]{a x^4-b x^3}-\frac {b c \sqrt [4]{a x^4-b x^3}}{8 a}-\frac {4 d \left (a x^4-b x^3\right )^{5/4}}{9 b x^6} \]
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Rule 65
Rule 209
Rule 212
Rule 304
Rule 338
Rule 2029
Rule 2039
Rule 2041
Rule 2049
Rule 2057
Rule 2077
Rubi steps \begin{align*} \text {integral}& = \int \left (c \sqrt [4]{-b x^3+a x^4}-\frac {d \sqrt [4]{-b x^3+a x^4}}{x^4}\right ) \, dx \\ & = c \int \sqrt [4]{-b x^3+a x^4} \, dx-d \int \frac {\sqrt [4]{-b x^3+a x^4}}{x^4} \, dx \\ & = \frac {1}{2} c x \sqrt [4]{-b x^3+a x^4}-\frac {4 d \left (-b x^3+a x^4\right )^{5/4}}{9 b x^6}-\frac {1}{8} (b c) \int \frac {x^3}{\left (-b x^3+a x^4\right )^{3/4}} \, dx-\frac {(4 a d) \int \frac {\sqrt [4]{-b x^3+a x^4}}{x^3} \, dx}{9 b} \\ & = -\frac {b c \sqrt [4]{-b x^3+a x^4}}{8 a}+\frac {1}{2} c x \sqrt [4]{-b x^3+a x^4}-\frac {4 d \left (-b x^3+a x^4\right )^{5/4}}{9 b x^6}-\frac {16 a d \left (-b x^3+a x^4\right )^{5/4}}{45 b^2 x^5}-\frac {\left (3 b^2 c\right ) \int \frac {x^2}{\left (-b x^3+a x^4\right )^{3/4}} \, dx}{32 a} \\ & = -\frac {b c \sqrt [4]{-b x^3+a x^4}}{8 a}+\frac {1}{2} c x \sqrt [4]{-b x^3+a x^4}-\frac {4 d \left (-b x^3+a x^4\right )^{5/4}}{9 b x^6}-\frac {16 a d \left (-b x^3+a x^4\right )^{5/4}}{45 b^2 x^5}-\frac {\left (3 b^2 c x^{9/4} (-b+a x)^{3/4}\right ) \int \frac {1}{\sqrt [4]{x} (-b+a x)^{3/4}} \, dx}{32 a \left (-b x^3+a x^4\right )^{3/4}} \\ & = -\frac {b c \sqrt [4]{-b x^3+a x^4}}{8 a}+\frac {1}{2} c x \sqrt [4]{-b x^3+a x^4}-\frac {4 d \left (-b x^3+a x^4\right )^{5/4}}{9 b x^6}-\frac {16 a d \left (-b x^3+a x^4\right )^{5/4}}{45 b^2 x^5}-\frac {\left (3 b^2 c x^{9/4} (-b+a x)^{3/4}\right ) \text {Subst}\left (\int \frac {x^2}{\left (-b+a x^4\right )^{3/4}} \, dx,x,\sqrt [4]{x}\right )}{8 a \left (-b x^3+a x^4\right )^{3/4}} \\ & = -\frac {b c \sqrt [4]{-b x^3+a x^4}}{8 a}+\frac {1}{2} c x \sqrt [4]{-b x^3+a x^4}-\frac {4 d \left (-b x^3+a x^4\right )^{5/4}}{9 b x^6}-\frac {16 a d \left (-b x^3+a x^4\right )^{5/4}}{45 b^2 x^5}-\frac {\left (3 b^2 c x^{9/4} (-b+a x)^{3/4}\right ) \text {Subst}\left (\int \frac {x^2}{1-a x^4} \, dx,x,\frac {\sqrt [4]{x}}{\sqrt [4]{-b+a x}}\right )}{8 a \left (-b x^3+a x^4\right )^{3/4}} \\ & = -\frac {b c \sqrt [4]{-b x^3+a x^4}}{8 a}+\frac {1}{2} c x \sqrt [4]{-b x^3+a x^4}-\frac {4 d \left (-b x^3+a x^4\right )^{5/4}}{9 b x^6}-\frac {16 a d \left (-b x^3+a x^4\right )^{5/4}}{45 b^2 x^5}-\frac {\left (3 b^2 c x^{9/4} (-b+a x)^{3/4}\right ) \text {Subst}\left (\int \frac {1}{1-\sqrt {a} x^2} \, dx,x,\frac {\sqrt [4]{x}}{\sqrt [4]{-b+a x}}\right )}{16 a^{3/2} \left (-b x^3+a x^4\right )^{3/4}}+\frac {\left (3 b^2 c x^{9/4} (-b+a x)^{3/4}\right ) \text {Subst}\left (\int \frac {1}{1+\sqrt {a} x^2} \, dx,x,\frac {\sqrt [4]{x}}{\sqrt [4]{-b+a x}}\right )}{16 a^{3/2} \left (-b x^3+a x^4\right )^{3/4}} \\ & = -\frac {b c \sqrt [4]{-b x^3+a x^4}}{8 a}+\frac {1}{2} c x \sqrt [4]{-b x^3+a x^4}-\frac {4 d \left (-b x^3+a x^4\right )^{5/4}}{9 b x^6}-\frac {16 a d \left (-b x^3+a x^4\right )^{5/4}}{45 b^2 x^5}+\frac {3 b^2 c x^{9/4} (-b+a x)^{3/4} \arctan \left (\frac {\sqrt [4]{a} \sqrt [4]{x}}{\sqrt [4]{-b+a x}}\right )}{16 a^{7/4} \left (-b x^3+a x^4\right )^{3/4}}-\frac {3 b^2 c x^{9/4} (-b+a x)^{3/4} \text {arctanh}\left (\frac {\sqrt [4]{a} \sqrt [4]{x}}{\sqrt [4]{-b+a x}}\right )}{16 a^{7/4} \left (-b x^3+a x^4\right )^{3/4}} \\ \end{align*}
Time = 0.66 (sec) , antiderivative size = 168, normalized size of antiderivative = 1.14 \[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=\frac {(-b+a x)^{3/4} \left (2 a^{3/4} \sqrt [4]{-b+a x} \left (-32 a^2 b d x-128 a^3 d x^2-45 b^3 c x^3+20 a b^2 \left (8 d+9 c x^4\right )\right )+135 b^4 c x^{9/4} \arctan \left (\frac {\sqrt [4]{a} \sqrt [4]{x}}{\sqrt [4]{-b+a x}}\right )-135 b^4 c x^{9/4} \text {arctanh}\left (\frac {\sqrt [4]{a} \sqrt [4]{x}}{\sqrt [4]{-b+a x}}\right )\right )}{720 a^{7/4} b^2 \left (x^3 (-b+a x)\right )^{3/4}} \]
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Time = 0.44 (sec) , antiderivative size = 159, normalized size of antiderivative = 1.07
method | result | size |
pseudoelliptic | \(\frac {-\frac {3 \ln \left (\frac {-a^{\frac {1}{4}} x -\left (x^{3} \left (a x -b \right )\right )^{\frac {1}{4}}}{a^{\frac {1}{4}} x -\left (x^{3} \left (a x -b \right )\right )^{\frac {1}{4}}}\right ) b^{4} c \,x^{3}}{16}-\frac {3 \arctan \left (\frac {\left (x^{3} \left (a x -b \right )\right )^{\frac {1}{4}}}{a^{\frac {1}{4}} x}\right ) b^{4} c \,x^{3}}{8}+\left (b^{2} \left (c \,x^{4}+\frac {8 d}{9}\right ) a^{\frac {7}{4}}-\frac {8 x \left (\frac {45 b^{3} c \,x^{2} a^{\frac {3}{4}}}{32}+a^{\frac {11}{4}} b d +4 a^{\frac {15}{4}} d x \right )}{45}\right ) \left (x^{3} \left (a x -b \right )\right )^{\frac {1}{4}}}{2 a^{\frac {7}{4}} x^{3} b^{2}}\) | \(159\) |
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Result contains complex when optimal does not.
Time = 0.28 (sec) , antiderivative size = 331, normalized size of antiderivative = 2.24 \[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=-\frac {135 \, \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a b^{2} x^{3} \log \left (\frac {3 \, {\left ({\left (a x^{4} - b x^{3}\right )}^{\frac {1}{4}} b^{2} c + \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a^{2} x\right )}}{x}\right ) + 135 i \, \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a b^{2} x^{3} \log \left (\frac {3 \, {\left ({\left (a x^{4} - b x^{3}\right )}^{\frac {1}{4}} b^{2} c + i \, \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a^{2} x\right )}}{x}\right ) - 135 i \, \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a b^{2} x^{3} \log \left (\frac {3 \, {\left ({\left (a x^{4} - b x^{3}\right )}^{\frac {1}{4}} b^{2} c - i \, \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a^{2} x\right )}}{x}\right ) - 135 \, \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a b^{2} x^{3} \log \left (\frac {3 \, {\left ({\left (a x^{4} - b x^{3}\right )}^{\frac {1}{4}} b^{2} c - \left (\frac {b^{8} c^{4}}{a^{7}}\right )^{\frac {1}{4}} a^{2} x\right )}}{x}\right ) - 4 \, {\left (180 \, a b^{2} c x^{4} - 45 \, b^{3} c x^{3} - 128 \, a^{3} d x^{2} - 32 \, a^{2} b d x + 160 \, a b^{2} d\right )} {\left (a x^{4} - b x^{3}\right )}^{\frac {1}{4}}}{1440 \, a b^{2} x^{3}} \]
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\[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=\int \frac {\sqrt [4]{x^{3} \left (a x - b\right )} \left (c x^{4} - d\right )}{x^{4}}\, dx \]
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\[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=\int { \frac {{\left (a x^{4} - b x^{3}\right )}^{\frac {1}{4}} {\left (c x^{4} - d\right )}}{x^{4}} \,d x } \]
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Leaf count of result is larger than twice the leaf count of optimal. 296 vs. \(2 (128) = 256\).
Time = 0.31 (sec) , antiderivative size = 296, normalized size of antiderivative = 2.00 \[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=\frac {\frac {270 \, \sqrt {2} b^{3} c \arctan \left (\frac {\sqrt {2} {\left (\sqrt {2} \left (-a\right )^{\frac {1}{4}} + 2 \, {\left (a - \frac {b}{x}\right )}^{\frac {1}{4}}\right )}}{2 \, \left (-a\right )^{\frac {1}{4}}}\right )}{\left (-a\right )^{\frac {3}{4}} a} + \frac {270 \, \sqrt {2} b^{3} c \arctan \left (-\frac {\sqrt {2} {\left (\sqrt {2} \left (-a\right )^{\frac {1}{4}} - 2 \, {\left (a - \frac {b}{x}\right )}^{\frac {1}{4}}\right )}}{2 \, \left (-a\right )^{\frac {1}{4}}}\right )}{\left (-a\right )^{\frac {3}{4}} a} + \frac {135 \, \sqrt {2} b^{3} c \log \left (\sqrt {2} \left (-a\right )^{\frac {1}{4}} {\left (a - \frac {b}{x}\right )}^{\frac {1}{4}} + \sqrt {-a} + \sqrt {a - \frac {b}{x}}\right )}{\left (-a\right )^{\frac {3}{4}} a} + \frac {135 \, \sqrt {2} \left (-a\right )^{\frac {1}{4}} b^{3} c \log \left (-\sqrt {2} \left (-a\right )^{\frac {1}{4}} {\left (a - \frac {b}{x}\right )}^{\frac {1}{4}} + \sqrt {-a} + \sqrt {a - \frac {b}{x}}\right )}{a^{2}} + \frac {360 \, {\left ({\left (a - \frac {b}{x}\right )}^{\frac {5}{4}} b^{3} c + 3 \, {\left (a - \frac {b}{x}\right )}^{\frac {1}{4}} a b^{3} c\right )} x^{2}}{a b^{2}} + \frac {256 \, {\left (5 \, {\left (a - \frac {b}{x}\right )}^{\frac {9}{4}} b^{8} d - 9 \, {\left (a - \frac {b}{x}\right )}^{\frac {5}{4}} a b^{8} d\right )}}{b^{9}}}{2880 \, b} \]
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Time = 6.70 (sec) , antiderivative size = 111, normalized size of antiderivative = 0.75 \[ \int \frac {\sqrt [4]{-b x^3+a x^4} \left (-d+c x^4\right )}{x^4} \, dx=\frac {4\,d\,{\left (a\,x^4-b\,x^3\right )}^{1/4}}{9\,x^3}-\frac {16\,a^2\,d\,{\left (a\,x^4-b\,x^3\right )}^{1/4}}{45\,b^2\,x}+\frac {4\,c\,x\,{\left (a\,x^4-b\,x^3\right )}^{1/4}\,{{}}_2{\mathrm {F}}_1\left (-\frac {1}{4},\frac {7}{4};\ \frac {11}{4};\ \frac {a\,x}{b}\right )}{7\,{\left (1-\frac {a\,x}{b}\right )}^{1/4}}-\frac {4\,a\,d\,{\left (a\,x^4-b\,x^3\right )}^{1/4}}{45\,b\,x^2} \]
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