3.73 \(\int \frac{\left (a+b x+c x^2\right )^2}{d+e x^3} \, dx\)

Optimal. Leaf size=272 \[ \frac{\log \left (d^{2/3}-\sqrt [3]{d} \sqrt [3]{e} x+e^{2/3} x^2\right ) \left (\sqrt [3]{e} \left (2 b c d-a^2 e\right )-\sqrt [3]{d} \left (c^2 d-2 a b e\right )\right )}{6 d^{2/3} e^{5/3}}-\frac{\log \left (\sqrt [3]{d}+\sqrt [3]{e} x\right ) \left (\sqrt [3]{e} \left (2 b c d-a^2 e\right )-\sqrt [3]{d} \left (c^2 d-2 a b e\right )\right )}{3 d^{2/3} e^{5/3}}+\frac{\left (2 a c+b^2\right ) \log \left (d+e x^3\right )}{3 e}+\frac{\tan ^{-1}\left (\frac{\sqrt [3]{d}-2 \sqrt [3]{e} x}{\sqrt{3} \sqrt [3]{d}}\right ) \left (-a e \left (a \sqrt [3]{e}+2 b \sqrt [3]{d}\right )+2 b c d \sqrt [3]{e}+c^2 d^{4/3}\right )}{\sqrt{3} d^{2/3} e^{5/3}}+\frac{2 b c x}{e}+\frac{c^2 x^2}{2 e} \]

[Out]

(2*b*c*x)/e + (c^2*x^2)/(2*e) + ((c^2*d^(4/3) + 2*b*c*d*e^(1/3) - a*(2*b*d^(1/3)
 + a*e^(1/3))*e)*ArcTan[(d^(1/3) - 2*e^(1/3)*x)/(Sqrt[3]*d^(1/3))])/(Sqrt[3]*d^(
2/3)*e^(5/3)) - ((e^(1/3)*(2*b*c*d - a^2*e) - d^(1/3)*(c^2*d - 2*a*b*e))*Log[d^(
1/3) + e^(1/3)*x])/(3*d^(2/3)*e^(5/3)) + ((e^(1/3)*(2*b*c*d - a^2*e) - d^(1/3)*(
c^2*d - 2*a*b*e))*Log[d^(2/3) - d^(1/3)*e^(1/3)*x + e^(2/3)*x^2])/(6*d^(2/3)*e^(
5/3)) + ((b^2 + 2*a*c)*Log[d + e*x^3])/(3*e)

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Rubi [A]  time = 0.889187, antiderivative size = 270, normalized size of antiderivative = 0.99, number of steps used = 10, number of rules used = 8, integrand size = 22, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.364 \[ \frac{\log \left (d^{2/3}-\sqrt [3]{d} \sqrt [3]{e} x+e^{2/3} x^2\right ) \left (a^2 (-e)-\frac{\sqrt [3]{d} \left (c^2 d-2 a b e\right )}{\sqrt [3]{e}}+2 b c d\right )}{6 d^{2/3} e^{4/3}}-\frac{\log \left (\sqrt [3]{d}+\sqrt [3]{e} x\right ) \left (\sqrt [3]{e} \left (2 b c d-a^2 e\right )-\sqrt [3]{d} \left (c^2 d-2 a b e\right )\right )}{3 d^{2/3} e^{5/3}}+\frac{\left (2 a c+b^2\right ) \log \left (d+e x^3\right )}{3 e}+\frac{\tan ^{-1}\left (\frac{\sqrt [3]{d}-2 \sqrt [3]{e} x}{\sqrt{3} \sqrt [3]{d}}\right ) \left (-a e \left (a \sqrt [3]{e}+2 b \sqrt [3]{d}\right )+2 b c d \sqrt [3]{e}+c^2 d^{4/3}\right )}{\sqrt{3} d^{2/3} e^{5/3}}+\frac{2 b c x}{e}+\frac{c^2 x^2}{2 e} \]

Antiderivative was successfully verified.

[In]  Int[(a + b*x + c*x^2)^2/(d + e*x^3),x]

[Out]

(2*b*c*x)/e + (c^2*x^2)/(2*e) + ((c^2*d^(4/3) + 2*b*c*d*e^(1/3) - a*(2*b*d^(1/3)
 + a*e^(1/3))*e)*ArcTan[(d^(1/3) - 2*e^(1/3)*x)/(Sqrt[3]*d^(1/3))])/(Sqrt[3]*d^(
2/3)*e^(5/3)) - ((e^(1/3)*(2*b*c*d - a^2*e) - d^(1/3)*(c^2*d - 2*a*b*e))*Log[d^(
1/3) + e^(1/3)*x])/(3*d^(2/3)*e^(5/3)) + ((2*b*c*d - a^2*e - (d^(1/3)*(c^2*d - 2
*a*b*e))/e^(1/3))*Log[d^(2/3) - d^(1/3)*e^(1/3)*x + e^(2/3)*x^2])/(6*d^(2/3)*e^(
4/3)) + ((b^2 + 2*a*c)*Log[d + e*x^3])/(3*e)

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Rubi in Sympy [F]  time = 0., size = 0, normalized size = 0. \[ \frac{2 b c x}{e} + \frac{c^{2} \int x\, dx}{e} + \frac{\left (2 a c + b^{2}\right ) \log{\left (d + e x^{3} \right )}}{3 e} + \frac{\left (a^{2} e^{\frac{4}{3}} - 2 a b \sqrt [3]{d} e - 2 b c d \sqrt [3]{e} + c^{2} d^{\frac{4}{3}}\right ) \log{\left (\sqrt [3]{d} + \sqrt [3]{e} x \right )}}{3 d^{\frac{2}{3}} e^{\frac{5}{3}}} - \frac{\left (a^{2} e^{\frac{4}{3}} - 2 a b \sqrt [3]{d} e - 2 b c d \sqrt [3]{e} + c^{2} d^{\frac{4}{3}}\right ) \log{\left (d^{\frac{2}{3}} - \sqrt [3]{d} \sqrt [3]{e} x + e^{\frac{2}{3}} x^{2} \right )}}{6 d^{\frac{2}{3}} e^{\frac{5}{3}}} - \frac{\sqrt{3} \left (a^{2} e^{\frac{4}{3}} + 2 a b \sqrt [3]{d} e - 2 b c d \sqrt [3]{e} - c^{2} d^{\frac{4}{3}}\right ) \operatorname{atan}{\left (\frac{\sqrt{3} \left (\frac{\sqrt [3]{d}}{3} - \frac{2 \sqrt [3]{e} x}{3}\right )}{\sqrt [3]{d}} \right )}}{3 d^{\frac{2}{3}} e^{\frac{5}{3}}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  rubi_integrate((c*x**2+b*x+a)**2/(e*x**3+d),x)

[Out]

2*b*c*x/e + c**2*Integral(x, x)/e + (2*a*c + b**2)*log(d + e*x**3)/(3*e) + (a**2
*e**(4/3) - 2*a*b*d**(1/3)*e - 2*b*c*d*e**(1/3) + c**2*d**(4/3))*log(d**(1/3) +
e**(1/3)*x)/(3*d**(2/3)*e**(5/3)) - (a**2*e**(4/3) - 2*a*b*d**(1/3)*e - 2*b*c*d*
e**(1/3) + c**2*d**(4/3))*log(d**(2/3) - d**(1/3)*e**(1/3)*x + e**(2/3)*x**2)/(6
*d**(2/3)*e**(5/3)) - sqrt(3)*(a**2*e**(4/3) + 2*a*b*d**(1/3)*e - 2*b*c*d*e**(1/
3) - c**2*d**(4/3))*atan(sqrt(3)*(d**(1/3)/3 - 2*e**(1/3)*x/3)/d**(1/3))/(3*d**(
2/3)*e**(5/3))

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Mathematica [A]  time = 0.799703, size = 269, normalized size = 0.99 \[ \frac{2 e^{2/3} \left (2 a c+b^2\right ) \log \left (d+e x^3\right )-\frac{\log \left (d^{2/3}-\sqrt [3]{d} \sqrt [3]{e} x+e^{2/3} x^2\right ) \left (a e \left (a \sqrt [3]{e}-2 b \sqrt [3]{d}\right )-2 b c d \sqrt [3]{e}+c^2 d^{4/3}\right )}{d^{2/3}}+\frac{2 \log \left (\sqrt [3]{d}+\sqrt [3]{e} x\right ) \left (a e \left (a \sqrt [3]{e}-2 b \sqrt [3]{d}\right )-2 b c d \sqrt [3]{e}+c^2 d^{4/3}\right )}{d^{2/3}}+\frac{2 \sqrt{3} \left (c d^{2/3}-a e^{2/3}\right ) \tan ^{-1}\left (\frac{1-\frac{2 \sqrt [3]{e} x}{\sqrt [3]{d}}}{\sqrt{3}}\right ) \left (a e^{2/3}+2 b \sqrt [3]{d} \sqrt [3]{e}+c d^{2/3}\right )}{d^{2/3}}+12 b c e^{2/3} x+3 c^2 e^{2/3} x^2}{6 e^{5/3}} \]

Antiderivative was successfully verified.

[In]  Integrate[(a + b*x + c*x^2)^2/(d + e*x^3),x]

[Out]

(12*b*c*e^(2/3)*x + 3*c^2*e^(2/3)*x^2 + (2*Sqrt[3]*(c*d^(2/3) - a*e^(2/3))*(c*d^
(2/3) + 2*b*d^(1/3)*e^(1/3) + a*e^(2/3))*ArcTan[(1 - (2*e^(1/3)*x)/d^(1/3))/Sqrt
[3]])/d^(2/3) + (2*(c^2*d^(4/3) - 2*b*c*d*e^(1/3) + a*(-2*b*d^(1/3) + a*e^(1/3))
*e)*Log[d^(1/3) + e^(1/3)*x])/d^(2/3) - ((c^2*d^(4/3) - 2*b*c*d*e^(1/3) + a*(-2*
b*d^(1/3) + a*e^(1/3))*e)*Log[d^(2/3) - d^(1/3)*e^(1/3)*x + e^(2/3)*x^2])/d^(2/3
) + 2*(b^2 + 2*a*c)*e^(2/3)*Log[d + e*x^3])/(6*e^(5/3))

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Maple [B]  time = 0.007, size = 444, normalized size = 1.6 \[ \text{result too large to display} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  int((c*x^2+b*x+a)^2/(e*x^3+d),x)

[Out]

1/2*c^2*x^2/e+2*b*c*x/e+1/3/e/(d/e)^(2/3)*ln(x+(d/e)^(1/3))*a^2-2/3/e^2/(d/e)^(2
/3)*ln(x+(d/e)^(1/3))*b*c*d-1/6/e/(d/e)^(2/3)*ln(x^2-x*(d/e)^(1/3)+(d/e)^(2/3))*
a^2+1/3/e^2/(d/e)^(2/3)*ln(x^2-x*(d/e)^(1/3)+(d/e)^(2/3))*b*c*d+1/3/e/(d/e)^(2/3
)*3^(1/2)*arctan(1/3*3^(1/2)*(2/(d/e)^(1/3)*x-1))*a^2-2/3/e^2/(d/e)^(2/3)*3^(1/2
)*arctan(1/3*3^(1/2)*(2/(d/e)^(1/3)*x-1))*b*c*d-2/3/e/(d/e)^(1/3)*ln(x+(d/e)^(1/
3))*a*b+1/3/e^2/(d/e)^(1/3)*ln(x+(d/e)^(1/3))*c^2*d+1/3/e/(d/e)^(1/3)*ln(x^2-x*(
d/e)^(1/3)+(d/e)^(2/3))*a*b-1/6/e^2/(d/e)^(1/3)*ln(x^2-x*(d/e)^(1/3)+(d/e)^(2/3)
)*c^2*d+2/3/e*3^(1/2)/(d/e)^(1/3)*arctan(1/3*3^(1/2)*(2/(d/e)^(1/3)*x-1))*a*b-1/
3/e^2*3^(1/2)/(d/e)^(1/3)*arctan(1/3*3^(1/2)*(2/(d/e)^(1/3)*x-1))*c^2*d+2/3/e*ln
(e*x^3+d)*a*c+1/3/e*ln(e*x^3+d)*b^2

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Maxima [F]  time = 0., size = 0, normalized size = 0. \[ \text{Exception raised: ValueError} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((c*x^2 + b*x + a)^2/(e*x^3 + d),x, algorithm="maxima")

[Out]

Exception raised: ValueError

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Fricas [F(-2)]  time = 0., size = 0, normalized size = 0. \[ \text{Exception raised: NotImplementedError} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((c*x^2 + b*x + a)^2/(e*x^3 + d),x, algorithm="fricas")

[Out]

Exception raised: NotImplementedError

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Sympy [A]  time = 15.6229, size = 546, normalized size = 2.01 \[ \frac{2 b c x}{e} + \frac{c^{2} x^{2}}{2 e} + \operatorname{RootSum}{\left (27 t^{3} d^{2} e^{5} + t^{2} \left (- 54 a c d^{2} e^{4} - 27 b^{2} d^{2} e^{4}\right ) + t \left (18 a^{3} b d e^{4} + 27 a^{2} c^{2} d^{2} e^{3} + 9 b^{4} d^{2} e^{3} + 18 b c^{3} d^{3} e^{2}\right ) - a^{6} e^{4} - 6 a^{4} b c d e^{3} + 2 a^{3} b^{3} d e^{3} - 2 a^{3} c^{3} d^{2} e^{2} - 9 a^{2} b^{2} c^{2} d^{2} e^{2} + 6 a b^{4} c d^{2} e^{2} - 6 a b c^{4} d^{3} e - b^{6} d^{2} e^{2} + 2 b^{3} c^{3} d^{3} e - c^{6} d^{4}, \left ( t \mapsto t \log{\left (x + \frac{18 t^{2} a b d^{2} e^{4} - 9 t^{2} c^{2} d^{3} e^{3} + 3 t a^{4} d e^{4} - 36 t a^{2} b c d^{2} e^{3} - 12 t a b^{3} d^{2} e^{3} + 12 t a c^{3} d^{3} e^{2} + 18 t b^{2} c^{2} d^{3} e^{2} - 2 a^{5} c d e^{3} + 7 a^{4} b^{2} d e^{3} + 8 a^{3} b c^{2} d^{2} e^{2} - 4 a^{2} b^{3} c d^{2} e^{2} - 2 a^{2} c^{4} d^{3} e + 2 a b^{5} d^{2} e^{2} + 4 a b^{2} c^{3} d^{3} e - 5 b^{4} c^{2} d^{3} e - 4 b c^{5} d^{4}}{a^{6} e^{4} - 6 a^{4} b c d e^{3} + 8 a^{3} b^{3} d e^{3} + 6 a b c^{4} d^{3} e - 8 b^{3} c^{3} d^{3} e - c^{6} d^{4}} \right )} \right )\right )} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((c*x**2+b*x+a)**2/(e*x**3+d),x)

[Out]

2*b*c*x/e + c**2*x**2/(2*e) + RootSum(27*_t**3*d**2*e**5 + _t**2*(-54*a*c*d**2*e
**4 - 27*b**2*d**2*e**4) + _t*(18*a**3*b*d*e**4 + 27*a**2*c**2*d**2*e**3 + 9*b**
4*d**2*e**3 + 18*b*c**3*d**3*e**2) - a**6*e**4 - 6*a**4*b*c*d*e**3 + 2*a**3*b**3
*d*e**3 - 2*a**3*c**3*d**2*e**2 - 9*a**2*b**2*c**2*d**2*e**2 + 6*a*b**4*c*d**2*e
**2 - 6*a*b*c**4*d**3*e - b**6*d**2*e**2 + 2*b**3*c**3*d**3*e - c**6*d**4, Lambd
a(_t, _t*log(x + (18*_t**2*a*b*d**2*e**4 - 9*_t**2*c**2*d**3*e**3 + 3*_t*a**4*d*
e**4 - 36*_t*a**2*b*c*d**2*e**3 - 12*_t*a*b**3*d**2*e**3 + 12*_t*a*c**3*d**3*e**
2 + 18*_t*b**2*c**2*d**3*e**2 - 2*a**5*c*d*e**3 + 7*a**4*b**2*d*e**3 + 8*a**3*b*
c**2*d**2*e**2 - 4*a**2*b**3*c*d**2*e**2 - 2*a**2*c**4*d**3*e + 2*a*b**5*d**2*e*
*2 + 4*a*b**2*c**3*d**3*e - 5*b**4*c**2*d**3*e - 4*b*c**5*d**4)/(a**6*e**4 - 6*a
**4*b*c*d*e**3 + 8*a**3*b**3*d*e**3 + 6*a*b*c**4*d**3*e - 8*b**3*c**3*d**3*e - c
**6*d**4))))

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GIAC/XCAS [A]  time = 0.218029, size = 383, normalized size = 1.41 \[ \frac{1}{3} \,{\left (b^{2} + 2 \, a c\right )} e^{\left (-1\right )}{\rm ln}\left ({\left | x^{3} e + d \right |}\right ) - \frac{\sqrt{3}{\left (2 \, \left (-d e^{2}\right )^{\frac{1}{3}} b c d e - \left (-d e^{2}\right )^{\frac{2}{3}} c^{2} d + 2 \, \left (-d e^{2}\right )^{\frac{2}{3}} a b e - \left (-d e^{2}\right )^{\frac{1}{3}} a^{2} e^{2}\right )} \arctan \left (\frac{\sqrt{3}{\left (2 \, x + \left (-d e^{\left (-1\right )}\right )^{\frac{1}{3}}\right )}}{3 \, \left (-d e^{\left (-1\right )}\right )^{\frac{1}{3}}}\right ) e^{\left (-3\right )}}{3 \, d} + \frac{{\left (\left (-d e^{\left (-1\right )}\right )^{\frac{1}{3}} c^{2} d e^{4} + 2 \, b c d e^{4} - 2 \, \left (-d e^{\left (-1\right )}\right )^{\frac{1}{3}} a b e^{5} - a^{2} e^{5}\right )} \left (-d e^{\left (-1\right )}\right )^{\frac{1}{3}} e^{\left (-5\right )}{\rm ln}\left ({\left | x - \left (-d e^{\left (-1\right )}\right )^{\frac{1}{3}} \right |}\right )}{3 \, d} + \frac{1}{2} \,{\left (c^{2} x^{2} e + 4 \, b c x e\right )} e^{\left (-2\right )} - \frac{{\left (2 \, \left (-d e^{2}\right )^{\frac{1}{3}} b c d e + \left (-d e^{2}\right )^{\frac{2}{3}} c^{2} d - 2 \, \left (-d e^{2}\right )^{\frac{2}{3}} a b e - \left (-d e^{2}\right )^{\frac{1}{3}} a^{2} e^{2}\right )} e^{\left (-3\right )}{\rm ln}\left (x^{2} + \left (-d e^{\left (-1\right )}\right )^{\frac{1}{3}} x + \left (-d e^{\left (-1\right )}\right )^{\frac{2}{3}}\right )}{6 \, d} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((c*x^2 + b*x + a)^2/(e*x^3 + d),x, algorithm="giac")

[Out]

1/3*(b^2 + 2*a*c)*e^(-1)*ln(abs(x^3*e + d)) - 1/3*sqrt(3)*(2*(-d*e^2)^(1/3)*b*c*
d*e - (-d*e^2)^(2/3)*c^2*d + 2*(-d*e^2)^(2/3)*a*b*e - (-d*e^2)^(1/3)*a^2*e^2)*ar
ctan(1/3*sqrt(3)*(2*x + (-d*e^(-1))^(1/3))/(-d*e^(-1))^(1/3))*e^(-3)/d + 1/3*((-
d*e^(-1))^(1/3)*c^2*d*e^4 + 2*b*c*d*e^4 - 2*(-d*e^(-1))^(1/3)*a*b*e^5 - a^2*e^5)
*(-d*e^(-1))^(1/3)*e^(-5)*ln(abs(x - (-d*e^(-1))^(1/3)))/d + 1/2*(c^2*x^2*e + 4*
b*c*x*e)*e^(-2) - 1/6*(2*(-d*e^2)^(1/3)*b*c*d*e + (-d*e^2)^(2/3)*c^2*d - 2*(-d*e
^2)^(2/3)*a*b*e - (-d*e^2)^(1/3)*a^2*e^2)*e^(-3)*ln(x^2 + (-d*e^(-1))^(1/3)*x +
(-d*e^(-1))^(2/3))/d