Optimal. Leaf size=187 \[ \frac {(-a-b x+1)^{3/2} \sqrt {a+b x+1} \left (22 a^2-2 (10 a+11) b x+54 a+29\right )}{8 b^4}+\frac {3 \left (8 a^3+36 a^2+44 a+17\right ) \sqrt {-a-b x+1} \sqrt {a+b x+1}}{8 b^4}+\frac {3 \left (8 a^3+36 a^2+44 a+17\right ) \sin ^{-1}(a+b x)}{8 b^4}+\frac {9 x^2 (-a-b x+1)^{3/2} \sqrt {a+b x+1}}{4 b^2}-\frac {2 x^3 (-a-b x+1)^{3/2}}{b \sqrt {a+b x+1}} \]
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Rubi [A] time = 0.19, antiderivative size = 187, normalized size of antiderivative = 1.00, number of steps used = 8, number of rules used = 8, integrand size = 14, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.571, Rules used = {6163, 97, 153, 147, 50, 53, 619, 216} \[ \frac {(-a-b x+1)^{3/2} \sqrt {a+b x+1} \left (22 a^2-2 (10 a+11) b x+54 a+29\right )}{8 b^4}+\frac {3 \left (8 a^3+36 a^2+44 a+17\right ) \sqrt {-a-b x+1} \sqrt {a+b x+1}}{8 b^4}+\frac {3 \left (8 a^3+36 a^2+44 a+17\right ) \sin ^{-1}(a+b x)}{8 b^4}+\frac {9 x^2 (-a-b x+1)^{3/2} \sqrt {a+b x+1}}{4 b^2}-\frac {2 x^3 (-a-b x+1)^{3/2}}{b \sqrt {a+b x+1}} \]
Antiderivative was successfully verified.
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Rule 50
Rule 53
Rule 97
Rule 147
Rule 153
Rule 216
Rule 619
Rule 6163
Rubi steps
\begin {align*} \int e^{-3 \tanh ^{-1}(a+b x)} x^3 \, dx &=\int \frac {x^3 (1-a-b x)^{3/2}}{(1+a+b x)^{3/2}} \, dx\\ &=-\frac {2 x^3 (1-a-b x)^{3/2}}{b \sqrt {1+a+b x}}+\frac {2 \int \frac {x^2 \left (3 (1-a)-\frac {9 b x}{2}\right ) \sqrt {1-a-b x}}{\sqrt {1+a+b x}} \, dx}{b}\\ &=-\frac {2 x^3 (1-a-b x)^{3/2}}{b \sqrt {1+a+b x}}+\frac {9 x^2 (1-a-b x)^{3/2} \sqrt {1+a+b x}}{4 b^2}-\frac {\int \frac {x \sqrt {1-a-b x} \left (9 (1-a) (1+a) b-\frac {3}{2} (11+10 a) b^2 x\right )}{\sqrt {1+a+b x}} \, dx}{2 b^3}\\ &=-\frac {2 x^3 (1-a-b x)^{3/2}}{b \sqrt {1+a+b x}}+\frac {9 x^2 (1-a-b x)^{3/2} \sqrt {1+a+b x}}{4 b^2}+\frac {(1-a-b x)^{3/2} \sqrt {1+a+b x} \left (29+54 a+22 a^2-2 (11+10 a) b x\right )}{8 b^4}+\frac {\left (3 \left (17+44 a+36 a^2+8 a^3\right )\right ) \int \frac {\sqrt {1-a-b x}}{\sqrt {1+a+b x}} \, dx}{8 b^3}\\ &=-\frac {2 x^3 (1-a-b x)^{3/2}}{b \sqrt {1+a+b x}}+\frac {3 \left (17+44 a+36 a^2+8 a^3\right ) \sqrt {1-a-b x} \sqrt {1+a+b x}}{8 b^4}+\frac {9 x^2 (1-a-b x)^{3/2} \sqrt {1+a+b x}}{4 b^2}+\frac {(1-a-b x)^{3/2} \sqrt {1+a+b x} \left (29+54 a+22 a^2-2 (11+10 a) b x\right )}{8 b^4}+\frac {\left (3 \left (17+44 a+36 a^2+8 a^3\right )\right ) \int \frac {1}{\sqrt {1-a-b x} \sqrt {1+a+b x}} \, dx}{8 b^3}\\ &=-\frac {2 x^3 (1-a-b x)^{3/2}}{b \sqrt {1+a+b x}}+\frac {3 \left (17+44 a+36 a^2+8 a^3\right ) \sqrt {1-a-b x} \sqrt {1+a+b x}}{8 b^4}+\frac {9 x^2 (1-a-b x)^{3/2} \sqrt {1+a+b x}}{4 b^2}+\frac {(1-a-b x)^{3/2} \sqrt {1+a+b x} \left (29+54 a+22 a^2-2 (11+10 a) b x\right )}{8 b^4}+\frac {\left (3 \left (17+44 a+36 a^2+8 a^3\right )\right ) \int \frac {1}{\sqrt {(1-a) (1+a)-2 a b x-b^2 x^2}} \, dx}{8 b^3}\\ &=-\frac {2 x^3 (1-a-b x)^{3/2}}{b \sqrt {1+a+b x}}+\frac {3 \left (17+44 a+36 a^2+8 a^3\right ) \sqrt {1-a-b x} \sqrt {1+a+b x}}{8 b^4}+\frac {9 x^2 (1-a-b x)^{3/2} \sqrt {1+a+b x}}{4 b^2}+\frac {(1-a-b x)^{3/2} \sqrt {1+a+b x} \left (29+54 a+22 a^2-2 (11+10 a) b x\right )}{8 b^4}-\frac {\left (3 \left (17+44 a+36 a^2+8 a^3\right )\right ) \operatorname {Subst}\left (\int \frac {1}{\sqrt {1-\frac {x^2}{4 b^2}}} \, dx,x,-2 a b-2 b^2 x\right )}{16 b^5}\\ &=-\frac {2 x^3 (1-a-b x)^{3/2}}{b \sqrt {1+a+b x}}+\frac {3 \left (17+44 a+36 a^2+8 a^3\right ) \sqrt {1-a-b x} \sqrt {1+a+b x}}{8 b^4}+\frac {9 x^2 (1-a-b x)^{3/2} \sqrt {1+a+b x}}{4 b^2}+\frac {(1-a-b x)^{3/2} \sqrt {1+a+b x} \left (29+54 a+22 a^2-2 (11+10 a) b x\right )}{8 b^4}+\frac {3 \left (17+44 a+36 a^2+8 a^3\right ) \sin ^{-1}(a+b x)}{8 b^4}\\ \end {align*}
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Mathematica [A] time = 0.21, size = 231, normalized size = 1.24 \[ \frac {6 \left (8 a^3+36 a^2+44 a+17\right ) \sqrt {b} \sqrt {-a^2-2 a b x-b^2 x^2+1} \sinh ^{-1}\left (\frac {\sqrt {b} \sqrt {-a-b x+1}}{\sqrt {2} \sqrt {-b}}\right )+\sqrt {-b} \left (-2 a^5-2 a^4 (b x+38)-5 a^3 (20 b x+31)-a^2 \left (12 b^2 x^2+265 b x+4\right )+a \left (2 b^4 x^4+4 b^3 x^3-53 b^2 x^2-212 b x+157\right )+2 b^5 x^5-8 b^4 x^4+17 b^3 x^3-40 b^2 x^2-51 b x+80\right )}{8 (-b)^{9/2} \sqrt {-((a+b x-1) (a+b x+1))}} \]
Warning: Unable to verify antiderivative.
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fricas [A] time = 0.82, size = 191, normalized size = 1.02 \[ -\frac {3 \, {\left (8 \, a^{4} + 44 \, a^{3} + {\left (8 \, a^{3} + 36 \, a^{2} + 44 \, a + 17\right )} b x + 80 \, a^{2} + 61 \, a + 17\right )} \arctan \left (\frac {\sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} {\left (b x + a\right )}}{b^{2} x^{2} + 2 \, a b x + a^{2} - 1}\right ) + {\left (2 \, b^{4} x^{4} - 6 \, b^{3} x^{3} + {\left (10 \, a + 11\right )} b^{2} x^{2} - 2 \, a^{4} - 78 \, a^{3} - {\left (22 \, a^{2} + 54 \, a + 29\right )} b x - 233 \, a^{2} - 237 \, a - 80\right )} \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1}}{8 \, {\left (b^{5} x + {\left (a + 1\right )} b^{4}\right )}} \]
Verification of antiderivative is not currently implemented for this CAS.
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giac [A] time = 0.23, size = 211, normalized size = 1.13 \[ -\frac {1}{8} \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} {\left ({\left (2 \, x {\left (\frac {x}{b} - \frac {a b^{11} + 4 \, b^{11}}{b^{13}}\right )} + \frac {2 \, a^{2} b^{10} + 20 \, a b^{10} + 19 \, b^{10}}{b^{13}}\right )} x - \frac {2 \, a^{3} b^{9} + 44 \, a^{2} b^{9} + 93 \, a b^{9} + 48 \, b^{9}}{b^{13}}\right )} - \frac {3 \, {\left (8 \, a^{3} + 36 \, a^{2} + 44 \, a + 17\right )} \arcsin \left (-b x - a\right ) \mathrm {sgn}\relax (b)}{8 \, b^{3} {\left | b \right |}} - \frac {8 \, {\left (a^{3} + 3 \, a^{2} + 3 \, a + 1\right )}}{b^{3} {\left (\frac {\sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} {\left | b \right |} + b}{b^{2} x + a b} + 1\right )} {\left | b \right |}} \]
Verification of antiderivative is not currently implemented for this CAS.
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maple [B] time = 0.05, size = 1271, normalized size = 6.80 \[ \text {result too large to display} \]
Verification of antiderivative is not currently implemented for this CAS.
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maxima [C] time = 0.43, size = 985, normalized size = 5.27 \[ -\frac {{\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}} a^{3}}{b^{6} x^{2} + 2 \, a b^{5} x + a^{2} b^{4} + 2 \, b^{5} x + 2 \, a b^{4} + b^{4}} - \frac {3 \, {\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}} a^{2}}{b^{6} x^{2} + 2 \, a b^{5} x + a^{2} b^{4} + 2 \, b^{5} x + 2 \, a b^{4} + b^{4}} + \frac {3 \, {\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}} a^{2}}{2 \, {\left (b^{5} x + a b^{4} + b^{4}\right )}} + \frac {6 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} a^{3}}{b^{5} x + a b^{4} + b^{4}} - \frac {3 \, {\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}} a}{b^{6} x^{2} + 2 \, a b^{5} x + a^{2} b^{4} + 2 \, b^{5} x + 2 \, a b^{4} + b^{4}} + \frac {3 \, {\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}} a}{b^{5} x + a b^{4} + b^{4}} + \frac {18 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} a^{2}}{b^{5} x + a b^{4} + b^{4}} - \frac {{\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}}}{b^{6} x^{2} + 2 \, a b^{5} x + a^{2} b^{4} + 2 \, b^{5} x + 2 \, a b^{4} + b^{4}} + \frac {3 \, {\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}}}{2 \, {\left (b^{5} x + a b^{4} + b^{4}\right )}} + \frac {18 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} a}{b^{5} x + a b^{4} + b^{4}} + \frac {3 \, a^{3} \arcsin \left (b x + a\right )}{b^{4}} + \frac {6 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1}}{b^{5} x + a b^{4} + b^{4}} + \frac {{\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}} x}{4 \, b^{3}} - \frac {3 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 4 \, b x + 4 \, a + 3} a x}{2 \, b^{3}} + \frac {27 \, a^{2} \arcsin \left (b x + a\right )}{2 \, b^{4}} - \frac {3 \, {\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}} a}{4 \, b^{4}} - \frac {3 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 4 \, b x + 4 \, a + 3} a^{2}}{2 \, b^{4}} + \frac {9 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} a^{2}}{2 \, b^{4}} - \frac {3 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 4 \, b x + 4 \, a + 3} x}{2 \, b^{3}} + \frac {3 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} x}{8 \, b^{3}} + \frac {3 i \, a \arcsin \left (b x + a + 2\right )}{2 \, b^{4}} + \frac {18 \, a \arcsin \left (b x + a\right )}{b^{4}} - \frac {{\left (-b^{2} x^{2} - 2 \, a b x - a^{2} + 1\right )}^{\frac {3}{2}}}{b^{4}} - \frac {9 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 4 \, b x + 4 \, a + 3} a}{2 \, b^{4}} + \frac {75 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1} a}{8 \, b^{4}} + \frac {3 i \, \arcsin \left (b x + a + 2\right )}{2 \, b^{4}} + \frac {63 \, \arcsin \left (b x + a\right )}{8 \, b^{4}} - \frac {3 \, \sqrt {b^{2} x^{2} + 2 \, a b x + a^{2} + 4 \, b x + 4 \, a + 3}}{b^{4}} + \frac {9 \, \sqrt {-b^{2} x^{2} - 2 \, a b x - a^{2} + 1}}{2 \, b^{4}} \]
Verification of antiderivative is not currently implemented for this CAS.
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mupad [F] time = 0.00, size = -1, normalized size = -0.01 \[ \int \frac {x^3\,{\left (1-{\left (a+b\,x\right )}^2\right )}^{3/2}}{{\left (a+b\,x+1\right )}^3} \,d x \]
Verification of antiderivative is not currently implemented for this CAS.
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sympy [F] time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {x^{3} \left (- \left (a + b x - 1\right ) \left (a + b x + 1\right )\right )^{\frac {3}{2}}}{\left (a + b x + 1\right )^{3}}\, dx \]
Verification of antiderivative is not currently implemented for this CAS.
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