Optimal. Leaf size=418 \[ \frac {2 a c x \sqrt {a+b x^4}}{21 b}-\frac {a d x^2 \sqrt {a+b x^4}}{16 b}+\frac {2 a e x^3 \sqrt {a+b x^4}}{45 b}-\frac {2 a^2 e x \sqrt {a+b x^4}}{15 b^{3/2} \left (\sqrt {a}+\sqrt {b} x^2\right )}+\frac {1}{63} x^5 \left (9 c+7 e x^2\right ) \sqrt {a+b x^4}+\frac {f x^4 \left (a+b x^4\right )^{3/2}}{10 b}-\frac {\left (8 a f-15 b d x^2\right ) \left (a+b x^4\right )^{3/2}}{120 b^2}-\frac {a^2 d \tanh ^{-1}\left (\frac {\sqrt {b} x^2}{\sqrt {a+b x^4}}\right )}{16 b^{3/2}}+\frac {2 a^{9/4} e \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} E\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{15 b^{7/4} \sqrt {a+b x^4}}-\frac {a^{7/4} \left (5 \sqrt {b} c+7 \sqrt {a} e\right ) \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{105 b^{7/4} \sqrt {a+b x^4}} \]
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Rubi [A]
time = 0.26, antiderivative size = 418, normalized size of antiderivative = 1.00, number of steps
used = 14, number of rules used = 12, integrand size = 30, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.400, Rules used = {1847, 1288,
1294, 1212, 226, 1210, 1266, 847, 794, 201, 223, 212} \begin {gather*} -\frac {a^{7/4} \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} \left (7 \sqrt {a} e+5 \sqrt {b} c\right ) F\left (2 \text {ArcTan}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{105 b^{7/4} \sqrt {a+b x^4}}+\frac {2 a^{9/4} e \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} E\left (2 \text {ArcTan}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{15 b^{7/4} \sqrt {a+b x^4}}-\frac {a^2 d \tanh ^{-1}\left (\frac {\sqrt {b} x^2}{\sqrt {a+b x^4}}\right )}{16 b^{3/2}}-\frac {2 a^2 e x \sqrt {a+b x^4}}{15 b^{3/2} \left (\sqrt {a}+\sqrt {b} x^2\right )}-\frac {\left (a+b x^4\right )^{3/2} \left (8 a f-15 b d x^2\right )}{120 b^2}+\frac {1}{63} x^5 \sqrt {a+b x^4} \left (9 c+7 e x^2\right )+\frac {2 a c x \sqrt {a+b x^4}}{21 b}-\frac {a d x^2 \sqrt {a+b x^4}}{16 b}+\frac {2 a e x^3 \sqrt {a+b x^4}}{45 b}+\frac {f x^4 \left (a+b x^4\right )^{3/2}}{10 b} \end {gather*}
Antiderivative was successfully verified.
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Rule 201
Rule 212
Rule 223
Rule 226
Rule 794
Rule 847
Rule 1210
Rule 1212
Rule 1266
Rule 1288
Rule 1294
Rule 1847
Rubi steps
\begin {align*} \int x^4 \left (c+d x+e x^2+f x^3\right ) \sqrt {a+b x^4} \, dx &=\int \left (x^4 \left (c+e x^2\right ) \sqrt {a+b x^4}+x^5 \left (d+f x^2\right ) \sqrt {a+b x^4}\right ) \, dx\\ &=\int x^4 \left (c+e x^2\right ) \sqrt {a+b x^4} \, dx+\int x^5 \left (d+f x^2\right ) \sqrt {a+b x^4} \, dx\\ &=\frac {1}{63} x^5 \left (9 c+7 e x^2\right ) \sqrt {a+b x^4}+\frac {1}{2} \text {Subst}\left (\int x^2 (d+f x) \sqrt {a+b x^2} \, dx,x,x^2\right )+\frac {1}{63} (2 a) \int \frac {x^4 \left (9 c+7 e x^2\right )}{\sqrt {a+b x^4}} \, dx\\ &=\frac {2 a e x^3 \sqrt {a+b x^4}}{45 b}+\frac {1}{63} x^5 \left (9 c+7 e x^2\right ) \sqrt {a+b x^4}+\frac {f x^4 \left (a+b x^4\right )^{3/2}}{10 b}+\frac {\text {Subst}\left (\int x (-2 a f+5 b d x) \sqrt {a+b x^2} \, dx,x,x^2\right )}{10 b}-\frac {(2 a) \int \frac {x^2 \left (21 a e-45 b c x^2\right )}{\sqrt {a+b x^4}} \, dx}{315 b}\\ &=\frac {2 a c x \sqrt {a+b x^4}}{21 b}+\frac {2 a e x^3 \sqrt {a+b x^4}}{45 b}+\frac {1}{63} x^5 \left (9 c+7 e x^2\right ) \sqrt {a+b x^4}+\frac {f x^4 \left (a+b x^4\right )^{3/2}}{10 b}-\frac {\left (8 a f-15 b d x^2\right ) \left (a+b x^4\right )^{3/2}}{120 b^2}+\frac {(2 a) \int \frac {-45 a b c-63 a b e x^2}{\sqrt {a+b x^4}} \, dx}{945 b^2}-\frac {(a d) \text {Subst}\left (\int \sqrt {a+b x^2} \, dx,x,x^2\right )}{8 b}\\ &=\frac {2 a c x \sqrt {a+b x^4}}{21 b}-\frac {a d x^2 \sqrt {a+b x^4}}{16 b}+\frac {2 a e x^3 \sqrt {a+b x^4}}{45 b}+\frac {1}{63} x^5 \left (9 c+7 e x^2\right ) \sqrt {a+b x^4}+\frac {f x^4 \left (a+b x^4\right )^{3/2}}{10 b}-\frac {\left (8 a f-15 b d x^2\right ) \left (a+b x^4\right )^{3/2}}{120 b^2}-\frac {\left (a^2 d\right ) \text {Subst}\left (\int \frac {1}{\sqrt {a+b x^2}} \, dx,x,x^2\right )}{16 b}+\frac {\left (2 a^{5/2} e\right ) \int \frac {1-\frac {\sqrt {b} x^2}{\sqrt {a}}}{\sqrt {a+b x^4}} \, dx}{15 b^{3/2}}-\frac {\left (2 a^2 \left (5 \sqrt {b} c+7 \sqrt {a} e\right )\right ) \int \frac {1}{\sqrt {a+b x^4}} \, dx}{105 b^{3/2}}\\ &=\frac {2 a c x \sqrt {a+b x^4}}{21 b}-\frac {a d x^2 \sqrt {a+b x^4}}{16 b}+\frac {2 a e x^3 \sqrt {a+b x^4}}{45 b}-\frac {2 a^2 e x \sqrt {a+b x^4}}{15 b^{3/2} \left (\sqrt {a}+\sqrt {b} x^2\right )}+\frac {1}{63} x^5 \left (9 c+7 e x^2\right ) \sqrt {a+b x^4}+\frac {f x^4 \left (a+b x^4\right )^{3/2}}{10 b}-\frac {\left (8 a f-15 b d x^2\right ) \left (a+b x^4\right )^{3/2}}{120 b^2}+\frac {2 a^{9/4} e \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} E\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{15 b^{7/4} \sqrt {a+b x^4}}-\frac {a^{7/4} \left (5 \sqrt {b} c+7 \sqrt {a} e\right ) \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{105 b^{7/4} \sqrt {a+b x^4}}-\frac {\left (a^2 d\right ) \text {Subst}\left (\int \frac {1}{1-b x^2} \, dx,x,\frac {x^2}{\sqrt {a+b x^4}}\right )}{16 b}\\ &=\frac {2 a c x \sqrt {a+b x^4}}{21 b}-\frac {a d x^2 \sqrt {a+b x^4}}{16 b}+\frac {2 a e x^3 \sqrt {a+b x^4}}{45 b}-\frac {2 a^2 e x \sqrt {a+b x^4}}{15 b^{3/2} \left (\sqrt {a}+\sqrt {b} x^2\right )}+\frac {1}{63} x^5 \left (9 c+7 e x^2\right ) \sqrt {a+b x^4}+\frac {f x^4 \left (a+b x^4\right )^{3/2}}{10 b}-\frac {\left (8 a f-15 b d x^2\right ) \left (a+b x^4\right )^{3/2}}{120 b^2}-\frac {a^2 d \tanh ^{-1}\left (\frac {\sqrt {b} x^2}{\sqrt {a+b x^4}}\right )}{16 b^{3/2}}+\frac {2 a^{9/4} e \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} E\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{15 b^{7/4} \sqrt {a+b x^4}}-\frac {a^{7/4} \left (5 \sqrt {b} c+7 \sqrt {a} e\right ) \left (\sqrt {a}+\sqrt {b} x^2\right ) \sqrt {\frac {a+b x^4}{\left (\sqrt {a}+\sqrt {b} x^2\right )^2}} F\left (2 \tan ^{-1}\left (\frac {\sqrt [4]{b} x}{\sqrt [4]{a}}\right )|\frac {1}{2}\right )}{105 b^{7/4} \sqrt {a+b x^4}}\\ \end {align*}
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Mathematica [C] Result contains higher order function than in optimal. Order 5 vs. order 4 in
optimal.
time = 10.45, size = 202, normalized size = 0.48 \begin {gather*} \frac {\sqrt {a+b x^4} \left (720 b c x \left (a+b x^4\right )+560 b e x^3 \left (a+b x^4\right )+315 b d x^2 \left (a+2 b x^4\right )+168 f \left (a+b x^4\right ) \left (-2 a+3 b x^4\right )-\frac {315 a^{3/2} \sqrt {b} d \sinh ^{-1}\left (\frac {\sqrt {b} x^2}{\sqrt {a}}\right )}{\sqrt {1+\frac {b x^4}{a}}}-\frac {720 a b c x \, _2F_1\left (-\frac {1}{2},\frac {1}{4};\frac {5}{4};-\frac {b x^4}{a}\right )}{\sqrt {1+\frac {b x^4}{a}}}-\frac {560 a b e x^3 \, _2F_1\left (-\frac {1}{2},\frac {3}{4};\frac {7}{4};-\frac {b x^4}{a}\right )}{\sqrt {1+\frac {b x^4}{a}}}\right )}{5040 b^2} \end {gather*}
Antiderivative was successfully verified.
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Maple [C] Result contains complex when optimal does not.
time = 0.37, size = 331, normalized size = 0.79
method | result | size |
default | \(-\frac {f \left (b \,x^{4}+a \right )^{\frac {3}{2}} \left (-3 b \,x^{4}+2 a \right )}{30 b^{2}}+e \left (\frac {x^{7} \sqrt {b \,x^{4}+a}}{9}+\frac {2 a \,x^{3} \sqrt {b \,x^{4}+a}}{45 b}-\frac {2 i a^{\frac {5}{2}} \sqrt {1-\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \sqrt {1+\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \left (\EllipticF \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )-\EllipticE \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )\right )}{15 b^{\frac {3}{2}} \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}\, \sqrt {b \,x^{4}+a}}\right )+d \left (\frac {x^{2} \left (b \,x^{4}+a \right )^{\frac {3}{2}}}{8 b}-\frac {a \,x^{2} \sqrt {b \,x^{4}+a}}{16 b}-\frac {a^{2} \ln \left (x^{2} \sqrt {b}+\sqrt {b \,x^{4}+a}\right )}{16 b^{\frac {3}{2}}}\right )+c \left (\frac {x^{5} \sqrt {b \,x^{4}+a}}{7}+\frac {2 a x \sqrt {b \,x^{4}+a}}{21 b}-\frac {2 a^{2} \sqrt {1-\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \sqrt {1+\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \EllipticF \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )}{21 b \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}\, \sqrt {b \,x^{4}+a}}\right )\) | \(331\) |
risch | \(-\frac {\left (-504 b^{2} f \,x^{8}-560 b^{2} e \,x^{7}-630 b^{2} d \,x^{6}-720 b^{2} c \,x^{5}-168 a b f \,x^{4}-224 a b e \,x^{3}-315 a b d \,x^{2}-480 a b c x +336 a^{2} f \right ) \sqrt {b \,x^{4}+a}}{5040 b^{2}}-\frac {2 i a^{\frac {5}{2}} e \sqrt {1-\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \sqrt {1+\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \EllipticF \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )}{15 b^{\frac {3}{2}} \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}\, \sqrt {b \,x^{4}+a}}+\frac {2 i a^{\frac {5}{2}} e \sqrt {1-\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \sqrt {1+\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \EllipticE \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )}{15 b^{\frac {3}{2}} \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}\, \sqrt {b \,x^{4}+a}}-\frac {a^{2} d \ln \left (x^{2} \sqrt {b}+\sqrt {b \,x^{4}+a}\right )}{16 b^{\frac {3}{2}}}-\frac {2 a^{2} c \sqrt {1-\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \sqrt {1+\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \EllipticF \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )}{21 b \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}\, \sqrt {b \,x^{4}+a}}\) | \(349\) |
elliptic | \(\frac {f \,x^{8} \sqrt {b \,x^{4}+a}}{10}+\frac {e \,x^{7} \sqrt {b \,x^{4}+a}}{9}+\frac {d \,x^{6} \sqrt {b \,x^{4}+a}}{8}+\frac {c \,x^{5} \sqrt {b \,x^{4}+a}}{7}+\frac {a f \,x^{4} \sqrt {b \,x^{4}+a}}{30 b}+\frac {2 a e \,x^{3} \sqrt {b \,x^{4}+a}}{45 b}+\frac {a d \,x^{2} \sqrt {b \,x^{4}+a}}{16 b}+\frac {2 a c x \sqrt {b \,x^{4}+a}}{21 b}-\frac {a^{2} f \sqrt {b \,x^{4}+a}}{15 b^{2}}-\frac {2 a^{2} c \sqrt {1-\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \sqrt {1+\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \EllipticF \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )}{21 b \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}\, \sqrt {b \,x^{4}+a}}-\frac {a^{2} d \ln \left (2 x^{2} \sqrt {b}+2 \sqrt {b \,x^{4}+a}\right )}{16 b^{\frac {3}{2}}}-\frac {2 i a^{\frac {5}{2}} e \sqrt {1-\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \sqrt {1+\frac {i \sqrt {b}\, x^{2}}{\sqrt {a}}}\, \left (\EllipticF \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )-\EllipticE \left (x \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}, i\right )\right )}{15 b^{\frac {3}{2}} \sqrt {\frac {i \sqrt {b}}{\sqrt {a}}}\, \sqrt {b \,x^{4}+a}}\) | \(358\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.12, size = 214, normalized size = 0.51 \begin {gather*} -\frac {1344 \, a^{2} \sqrt {b} e x \left (-\frac {a}{b}\right )^{\frac {3}{4}} E(\arcsin \left (\frac {\left (-\frac {a}{b}\right )^{\frac {1}{4}}}{x}\right )\,|\,-1) - 315 \, a^{2} \sqrt {b} d x \log \left (-2 \, b x^{4} + 2 \, \sqrt {b x^{4} + a} \sqrt {b} x^{2} - a\right ) + 192 \, {\left (5 \, a b c - 7 \, a^{2} e\right )} \sqrt {b} x \left (-\frac {a}{b}\right )^{\frac {3}{4}} F(\arcsin \left (\frac {\left (-\frac {a}{b}\right )^{\frac {1}{4}}}{x}\right )\,|\,-1) - 2 \, {\left (504 \, b^{2} f x^{9} + 560 \, b^{2} e x^{8} + 630 \, b^{2} d x^{7} + 720 \, b^{2} c x^{6} + 168 \, a b f x^{5} + 224 \, a b e x^{4} + 315 \, a b d x^{3} + 480 \, a b c x^{2} - 336 \, a^{2} f x - 672 \, a^{2} e\right )} \sqrt {b x^{4} + a}}{10080 \, b^{2} x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [A]
time = 3.71, size = 252, normalized size = 0.60 \begin {gather*} \frac {a^{\frac {3}{2}} d x^{2}}{16 b \sqrt {1 + \frac {b x^{4}}{a}}} + \frac {\sqrt {a} c x^{5} \Gamma \left (\frac {5}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{2}, \frac {5}{4} \\ \frac {9}{4} \end {matrix}\middle | {\frac {b x^{4} e^{i \pi }}{a}} \right )}}{4 \Gamma \left (\frac {9}{4}\right )} + \frac {3 \sqrt {a} d x^{6}}{16 \sqrt {1 + \frac {b x^{4}}{a}}} + \frac {\sqrt {a} e x^{7} \Gamma \left (\frac {7}{4}\right ) {{}_{2}F_{1}\left (\begin {matrix} - \frac {1}{2}, \frac {7}{4} \\ \frac {11}{4} \end {matrix}\middle | {\frac {b x^{4} e^{i \pi }}{a}} \right )}}{4 \Gamma \left (\frac {11}{4}\right )} - \frac {a^{2} d \operatorname {asinh}{\left (\frac {\sqrt {b} x^{2}}{\sqrt {a}} \right )}}{16 b^{\frac {3}{2}}} + f \left (\begin {cases} - \frac {a^{2} \sqrt {a + b x^{4}}}{15 b^{2}} + \frac {a x^{4} \sqrt {a + b x^{4}}}{30 b} + \frac {x^{8} \sqrt {a + b x^{4}}}{10} & \text {for}\: b \neq 0 \\\frac {\sqrt {a} x^{8}}{8} & \text {otherwise} \end {cases}\right ) + \frac {b d x^{10}}{8 \sqrt {a} \sqrt {1 + \frac {b x^{4}}{a}}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {could not integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [F]
time = 0.00, size = -1, normalized size = -0.00 \begin {gather*} \int x^4\,\sqrt {b\,x^4+a}\,\left (f\,x^3+e\,x^2+d\,x+c\right ) \,d x \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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