Integrand size = 41, antiderivative size = 76 \[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=-\frac {\arctan \left (\frac {x \left (-b+a x^2\right )^{3/4}}{\sqrt {2} \left (b-a x^2\right )}\right )}{\sqrt {2}}+\frac {\text {arctanh}\left (\frac {x \left (-b+a x^2\right )^{3/4}}{\sqrt {2} \left (b-a x^2\right )}\right )}{\sqrt {2}} \]
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Result contains higher order function than in optimal. Order 4 vs. order 3 in optimal.
Time = 29.39 (sec) , antiderivative size = 2421, normalized size of antiderivative = 31.86, number of steps used = 24, number of rules used = 8, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.195, Rules used = {1706, 240, 226, 410, 109, 418, 1231, 1721} \[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=\frac {\sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticPi}\left (\frac {\left (\sqrt {2 a^2-2 \sqrt {a^2-b} a-b}+\sqrt {b}\right )^2}{4 \sqrt {2 a^2-2 \sqrt {a^2-b} a-b} \sqrt {b}},2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right ) \left (\sqrt {2 a^2-2 \sqrt {a^2-b} a-b}-\sqrt {b}\right )^2}{8 \left (a^2-\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x}-\frac {\sqrt {b} \left (4 a^4-5 b a^2-\left (4 a^2-3 b\right ) \sqrt {a^2-b} a+b^2\right ) \sqrt {\frac {a x^2}{b}} \arctan \left (\frac {\sqrt {2} \sqrt {a} \sqrt {a-\sqrt {a^2-b}} \sqrt [4]{a x^2-b}}{\sqrt [4]{2 a^2-2 \sqrt {a^2-b} a-b} \sqrt {b} \sqrt {\frac {a x^2}{b}}}\right )}{2 \sqrt {2} \sqrt {a} \sqrt {a-\sqrt {a^2-b}} \left (2 a^2-2 \sqrt {a^2-b} a-b\right )^{3/4} \left (a^2-\sqrt {a^2-b} a-b\right ) x}-\frac {\sqrt {b} \left (4 a^4-5 b a^2-\left (4 a^2-3 b\right ) \sqrt {a^2-b} a+b^2\right ) \sqrt {\frac {a x^2}{b}} \arctan \left (\frac {\sqrt {2} \sqrt {a} \sqrt {\sqrt {a^2-b}-a} \sqrt [4]{a x^2-b}}{\sqrt [4]{2 a^2-2 \sqrt {a^2-b} a-b} \sqrt {b} \sqrt {\frac {a x^2}{b}}}\right )}{2 \sqrt {2} \sqrt {a} \sqrt {\sqrt {a^2-b}-a} \left (2 a^2-2 \sqrt {a^2-b} a-b\right )^{3/4} \left (a^2-\sqrt {a^2-b} a-b\right ) x}-\frac {\sqrt [4]{2 a^2+2 \sqrt {a^2-b} a-b} \sqrt {b} \sqrt {\frac {a x^2}{b}} \arctan \left (\frac {\sqrt {2} \sqrt {a} \sqrt {-a-\sqrt {a^2-b}} \sqrt [4]{a x^2-b}}{\sqrt [4]{2 a^2+2 \sqrt {a^2-b} a-b} \sqrt {b} \sqrt {\frac {a x^2}{b}}}\right )}{2 \sqrt {2} \sqrt {a} \sqrt {-a-\sqrt {a^2-b}} x}-\frac {\sqrt [4]{2 a^2+2 \sqrt {a^2-b} a-b} \sqrt {b} \sqrt {\frac {a x^2}{b}} \arctan \left (\frac {\sqrt {2} \sqrt {a} \sqrt {a+\sqrt {a^2-b}} \sqrt [4]{a x^2-b}}{\sqrt [4]{2 a^2+2 \sqrt {a^2-b} a-b} \sqrt {b} \sqrt {\frac {a x^2}{b}}}\right )}{2 \sqrt {2} \sqrt {a} \sqrt {a+\sqrt {a^2-b}} x}-\frac {\left (1-\frac {\sqrt {b}}{\sqrt {2 a^2+2 \sqrt {a^2-b} a-b}}\right ) \left (2 a^2+2 \sqrt {a^2-b} a-b\right ) \sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{4 \left (a^2+\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x}-\frac {\left (\frac {\sqrt {b}}{\sqrt {2 a^2+2 \sqrt {a^2-b} a-b}}+1\right ) \left (2 a^2+2 \sqrt {a^2-b} a-b\right ) \sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{4 \left (a^2+\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x}-\frac {\left (1-\frac {\sqrt {b}}{\sqrt {2 a^2-2 \sqrt {a^2-b} a-b}}\right ) \left (2 a^2-2 \sqrt {a^2-b} a-b\right ) \sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{4 \left (a^2-\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x}-\frac {\left (\frac {\sqrt {b}}{\sqrt {2 a^2-2 \sqrt {a^2-b} a-b}}+1\right ) \left (2 a^2-2 \sqrt {a^2-b} a-b\right ) \sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{4 \left (a^2-\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x}+\frac {\sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{\sqrt [4]{b} x}+\frac {\left (\sqrt {2 a^2-2 \sqrt {a^2-b} a-b}+\sqrt {b}\right )^2 \sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticPi}\left (-\frac {\left (\sqrt {2 a^2-2 \sqrt {a^2-b} a-b}-\sqrt {b}\right )^2}{4 \sqrt {2 a^2-2 \sqrt {a^2-b} a-b} \sqrt {b}},2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{8 \left (a^2-\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x}+\frac {\left (\sqrt {2 a^2+2 \sqrt {a^2-b} a-b}+\sqrt {b}\right )^2 \sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticPi}\left (-\frac {\left (\sqrt {2 a^2+2 \sqrt {a^2-b} a-b}-\sqrt {b}\right )^2}{4 \sqrt {2 a^2+2 \sqrt {a^2-b} a-b} \sqrt {b}},2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{8 \left (a^2+\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x}+\frac {\left (\sqrt {2 a^2+2 \sqrt {a^2-b} a-b}-\sqrt {b}\right )^2 \sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {a x^2-b}\right )^2}} \left (\sqrt {b}+\sqrt {a x^2-b}\right ) \operatorname {EllipticPi}\left (\frac {\left (\sqrt {2 a^2+2 \sqrt {a^2-b} a-b}+\sqrt {b}\right )^2}{4 \sqrt {2 a^2+2 \sqrt {a^2-b} a-b} \sqrt {b}},2 \arctan \left (\frac {\sqrt [4]{a x^2-b}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{8 \left (a^2+\sqrt {a^2-b} a-b\right ) \sqrt [4]{b} x} \]
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Rule 109
Rule 226
Rule 240
Rule 410
Rule 418
Rule 1231
Rule 1706
Rule 1721
Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {a}{\left (-b+a x^2\right )^{3/4}}-\frac {2 \left (2 a b-\left (2 a^2-b\right ) x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )}\right ) \, dx \\ & = -\left (2 \int \frac {2 a b-\left (2 a^2-b\right ) x^2}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx\right )+a \int \frac {1}{\left (-b+a x^2\right )^{3/4}} \, dx \\ & = -\left (2 \int \left (\frac {-2 a^2-2 a \sqrt {a^2-b}+b}{\left (-4 a-4 \sqrt {a^2-b}+2 x^2\right ) \left (-b+a x^2\right )^{3/4}}+\frac {-2 a^2+2 a \sqrt {a^2-b}+b}{\left (-4 a+4 \sqrt {a^2-b}+2 x^2\right ) \left (-b+a x^2\right )^{3/4}}\right ) \, dx\right )+\frac {\left (2 \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{x} \\ & = \frac {\sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {-b+a x^2}\right )^2}} \left (\sqrt {b}+\sqrt {-b+a x^2}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{-b+a x^2}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{\sqrt [4]{b} x}+\left (2 \left (2 a^2-2 a \sqrt {a^2-b}-b\right )\right ) \int \frac {1}{\left (-4 a+4 \sqrt {a^2-b}+2 x^2\right ) \left (-b+a x^2\right )^{3/4}} \, dx+\left (2 \left (2 a^2+2 a \sqrt {a^2-b}-b\right )\right ) \int \frac {1}{\left (-4 a-4 \sqrt {a^2-b}+2 x^2\right ) \left (-b+a x^2\right )^{3/4}} \, dx \\ & = \frac {\sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {-b+a x^2}\right )^2}} \left (\sqrt {b}+\sqrt {-b+a x^2}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{-b+a x^2}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{\sqrt [4]{b} x}+\frac {\left (\left (2 a^2-2 a \sqrt {a^2-b}-b\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {\frac {a x}{b}} \left (-4 a+4 \sqrt {a^2-b}+2 x\right ) (-b+a x)^{3/4}} \, dx,x,x^2\right )}{x}+\frac {\left (\left (2 a^2+2 a \sqrt {a^2-b}-b\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {\frac {a x}{b}} \left (-4 a-4 \sqrt {a^2-b}+2 x\right ) (-b+a x)^{3/4}} \, dx,x,x^2\right )}{x} \\ & = \frac {\sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {-b+a x^2}\right )^2}} \left (\sqrt {b}+\sqrt {-b+a x^2}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{-b+a x^2}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{\sqrt [4]{b} x}-\frac {\left (4 \left (2 a^2-2 a \sqrt {a^2-b}-b\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\left (-a \left (-4 a+4 \sqrt {a^2-b}\right )-2 b-2 x^4\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{x}-\frac {\left (4 \left (2 a^2+2 a \sqrt {a^2-b}-b\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\left (-a \left (-4 a-4 \sqrt {a^2-b}\right )-2 b-2 x^4\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{x} \\ & = \frac {\sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {-b+a x^2}\right )^2}} \left (\sqrt {b}+\sqrt {-b+a x^2}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{-b+a x^2}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{\sqrt [4]{b} x}-\frac {\sqrt {\frac {a x^2}{b}} \text {Subst}\left (\int \frac {1}{\left (1-\frac {x^2}{\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{x}-\frac {\sqrt {\frac {a x^2}{b}} \text {Subst}\left (\int \frac {1}{\left (1+\frac {x^2}{\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{x}-\frac {\sqrt {\frac {a x^2}{b}} \text {Subst}\left (\int \frac {1}{\left (1-\frac {x^2}{\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{x}-\frac {\sqrt {\frac {a x^2}{b}} \text {Subst}\left (\int \frac {1}{\left (1+\frac {x^2}{\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{x} \\ & = \frac {\sqrt {\frac {a x^2}{\left (\sqrt {b}+\sqrt {-b+a x^2}\right )^2}} \left (\sqrt {b}+\sqrt {-b+a x^2}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt [4]{-b+a x^2}}{\sqrt [4]{b}}\right ),\frac {1}{2}\right )}{\sqrt [4]{b} x}-\frac {\left (\left (\frac {1}{\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}}-\frac {1}{\sqrt {b}}\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{\left (\frac {1}{2 a^2+2 a \sqrt {a^2-b}-b}-\frac {1}{b}\right ) \sqrt {b} x}+\frac {\left (\left (\frac {1}{\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}}+\frac {1}{\sqrt {b}}\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{\left (\frac {1}{2 a^2+2 a \sqrt {a^2-b}-b}-\frac {1}{b}\right ) \sqrt {b} x}-\frac {\left (\left (\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}-\sqrt {b}\right ) \sqrt {b} \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1+\frac {x^2}{\sqrt {b}}}{\left (1-\frac {x^2}{\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{2 \left (a^2-a \sqrt {a^2-b}-b\right ) x}+\frac {\left (\left (\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}+\sqrt {b}\right ) \sqrt {b} \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1+\frac {x^2}{\sqrt {b}}}{\left (1+\frac {x^2}{\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{2 \left (a^2-a \sqrt {a^2-b}-b\right ) x}-\frac {\left (\left (\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}-\sqrt {b}\right ) \sqrt {b} \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1+\frac {x^2}{\sqrt {b}}}{\left (1-\frac {x^2}{\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{2 \left (a^2+a \sqrt {a^2-b}-b\right ) x}+\frac {\left (\left (\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}+\sqrt {b}\right ) \sqrt {b} \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1+\frac {x^2}{\sqrt {b}}}{\left (1+\frac {x^2}{\sqrt {2 a^2+2 a \sqrt {a^2-b}-b}}\right ) \sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{2 \left (a^2+a \sqrt {a^2-b}-b\right ) x}+\frac {\left (\left (\frac {1}{\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}}-\frac {1}{\sqrt {b}}\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{\sqrt {b} \left (\frac {1}{b}+\frac {1}{-2 a^2+2 a \sqrt {a^2-b}+b}\right ) x}-\frac {\left (\left (\frac {1}{\sqrt {2 a^2-2 a \sqrt {a^2-b}-b}}+\frac {1}{\sqrt {b}}\right ) \sqrt {\frac {a x^2}{b}}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {1+\frac {x^4}{b}}} \, dx,x,\sqrt [4]{-b+a x^2}\right )}{\sqrt {b} \left (\frac {1}{b}+\frac {1}{-2 a^2+2 a \sqrt {a^2-b}+b}\right ) x} \\ & = \text {Too large to display} \\ \end{align*}
Time = 2.09 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.67 \[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=\frac {\arctan \left (\frac {x}{\sqrt {2} \sqrt [4]{-b+a x^2}}\right )-\text {arctanh}\left (\frac {x}{\sqrt {2} \sqrt [4]{-b+a x^2}}\right )}{\sqrt {2}} \]
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\[\int \frac {x^{2} \left (a \,x^{2}-2 b \right )}{\left (a \,x^{2}-b \right )^{\frac {3}{4}} \left (x^{4}-4 a \,x^{2}+4 b \right )}d x\]
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Leaf count of result is larger than twice the leaf count of optimal. 113 vs. \(2 (47) = 94\).
Time = 0.27 (sec) , antiderivative size = 113, normalized size of antiderivative = 1.49 \[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=-\frac {1}{2} \, \sqrt {2} \arctan \left (\frac {\sqrt {2} {\left (a x^{2} - b\right )}^{\frac {1}{4}}}{x}\right ) + \frac {1}{4} \, \sqrt {2} \log \left (-\frac {x^{4} - 2 \, \sqrt {2} {\left (a x^{2} - b\right )}^{\frac {1}{4}} x^{3} + 4 \, a x^{2} + 4 \, \sqrt {a x^{2} - b} x^{2} - 4 \, \sqrt {2} {\left (a x^{2} - b\right )}^{\frac {3}{4}} x - 4 \, b}{x^{4} - 4 \, a x^{2} + 4 \, b}\right ) \]
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\[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=\int \frac {x^{2} \left (a x^{2} - 2 b\right )}{\left (a x^{2} - b\right )^{\frac {3}{4}} \left (- 4 a x^{2} + 4 b + x^{4}\right )}\, dx \]
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\[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=\int { \frac {{\left (a x^{2} - 2 \, b\right )} x^{2}}{{\left (x^{4} - 4 \, a x^{2} + 4 \, b\right )} {\left (a x^{2} - b\right )}^{\frac {3}{4}}} \,d x } \]
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\[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=\int { \frac {{\left (a x^{2} - 2 \, b\right )} x^{2}}{{\left (x^{4} - 4 \, a x^{2} + 4 \, b\right )} {\left (a x^{2} - b\right )}^{\frac {3}{4}}} \,d x } \]
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Timed out. \[ \int \frac {x^2 \left (-2 b+a x^2\right )}{\left (-b+a x^2\right )^{3/4} \left (4 b-4 a x^2+x^4\right )} \, dx=-\int \frac {x^2\,\left (2\,b-a\,x^2\right )}{{\left (a\,x^2-b\right )}^{3/4}\,\left (x^4-4\,a\,x^2+4\,b\right )} \,d x \]
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