3.69 \(\int \frac{1}{(a+\frac{c}{x^2}+\frac{b}{x}) x^5 (d+e x)} \, dx\)

Optimal. Leaf size=252 \[ \frac{\left (a^2 c d-a b (b d+2 c e)+b^3 e\right ) \log \left (a x^2+b x+c\right )}{2 c^3 \left (a d^2-e (b d-c e)\right )}-\frac{\left (a^2 c (3 b d+2 c e)-a b^2 (b d+4 c e)+b^4 e\right ) \tanh ^{-1}\left (\frac{2 a x+b}{\sqrt{b^2-4 a c}}\right )}{c^3 \sqrt{b^2-4 a c} \left (a d^2-e (b d-c e)\right )}+\frac{\log (x) \left (-c \left (a d^2-c e^2\right )+b^2 d^2+b c d e\right )}{c^3 d^3}-\frac{e^4 \log (d+e x)}{d^3 \left (a d^2-e (b d-c e)\right )}+\frac{b d+c e}{c^2 d^2 x}-\frac{1}{2 c d x^2} \]

[Out]

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

________________________________________________________________________________________

Rubi [A]  time = 0.428431, antiderivative size = 252, normalized size of antiderivative = 1., number of steps used = 7, number of rules used = 6, integrand size = 25, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.24, Rules used = {1569, 893, 634, 618, 206, 628} \[ \frac{\left (a^2 c d-a b (b d+2 c e)+b^3 e\right ) \log \left (a x^2+b x+c\right )}{2 c^3 \left (a d^2-e (b d-c e)\right )}-\frac{\left (a^2 c (3 b d+2 c e)-a b^2 (b d+4 c e)+b^4 e\right ) \tanh ^{-1}\left (\frac{2 a x+b}{\sqrt{b^2-4 a c}}\right )}{c^3 \sqrt{b^2-4 a c} \left (a d^2-e (b d-c e)\right )}+\frac{\log (x) \left (-c \left (a d^2-c e^2\right )+b^2 d^2+b c d e\right )}{c^3 d^3}-\frac{e^4 \log (d+e x)}{d^3 \left (a d^2-e (b d-c e)\right )}+\frac{b d+c e}{c^2 d^2 x}-\frac{1}{2 c d x^2} \]

Antiderivative was successfully verified.

[In]

Int[1/((a + c/x^2 + b/x)*x^5*(d + e*x)),x]

[Out]

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

Rule 1569

Int[(x_)^(m_.)*((a_.) + (b_.)*(x_)^(mn_.) + (c_.)*(x_)^(mn2_.))^(p_.)*((d_) + (e_.)*(x_)^(n_.))^(q_.), x_Symbo
l] :> Int[x^(m - 2*n*p)*(d + e*x^n)^q*(c + b*x^n + a*x^(2*n))^p, x] /; FreeQ[{a, b, c, d, e, m, n, q}, x] && E
qQ[mn, -n] && EqQ[mn2, 2*mn] && IntegerQ[p]

Rule 893

Int[((d_.) + (e_.)*(x_))^(m_)*((f_.) + (g_.)*(x_))^(n_)*((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(p_.), x_Symbol] :
> Int[ExpandIntegrand[(d + e*x)^m*(f + g*x)^n*(a + b*x + c*x^2)^p, x], x] /; FreeQ[{a, b, c, d, e, f, g}, x] &
& NeQ[e*f - d*g, 0] && NeQ[b^2 - 4*a*c, 0] && NeQ[c*d^2 - b*d*e + a*e^2, 0] && IntegerQ[p] && ((EqQ[p, 1] && I
ntegersQ[m, n]) || (ILtQ[m, 0] && ILtQ[n, 0]))

Rule 634

Int[((d_.) + (e_.)*(x_))/((a_) + (b_.)*(x_) + (c_.)*(x_)^2), x_Symbol] :> Dist[(2*c*d - b*e)/(2*c), Int[1/(a +
b*x + c*x^2), x], x] + Dist[e/(2*c), Int[(b + 2*c*x)/(a + b*x + c*x^2), x], x] /; FreeQ[{a, b, c, d, e}, x] &
& NeQ[2*c*d - b*e, 0] && NeQ[b^2 - 4*a*c, 0] &&  !NiceSqrtQ[b^2 - 4*a*c]

Rule 618

Int[((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(-1), x_Symbol] :> Dist[-2, Subst[Int[1/Simp[b^2 - 4*a*c - x^2, x], x]
, x, b + 2*c*x], x] /; FreeQ[{a, b, c}, x] && NeQ[b^2 - 4*a*c, 0]

Rule 206

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(1*ArcTanh[(Rt[-b, 2]*x)/Rt[a, 2]])/(Rt[a, 2]*Rt[-b, 2]), x]
/; FreeQ[{a, b}, x] && NegQ[a/b] && (GtQ[a, 0] || LtQ[b, 0])

Rule 628

Int[((d_) + (e_.)*(x_))/((a_.) + (b_.)*(x_) + (c_.)*(x_)^2), x_Symbol] :> Simp[(d*Log[RemoveContent[a + b*x +
c*x^2, x]])/b, x] /; FreeQ[{a, b, c, d, e}, x] && EqQ[2*c*d - b*e, 0]

Rubi steps

\begin{align*} \int \frac{1}{\left (a+\frac{c}{x^2}+\frac{b}{x}\right ) x^5 (d+e x)} \, dx &=\int \frac{1}{x^3 (d+e x) \left (c+b x+a x^2\right )} \, dx\\ &=\int \left (\frac{1}{c d x^3}+\frac{-b d-c e}{c^2 d^2 x^2}+\frac{b^2 d^2+b c d e-c \left (a d^2-c e^2\right )}{c^3 d^3 x}+\frac{e^5}{d^3 \left (-a d^2+e (b d-c e)\right ) (d+e x)}+\frac{b^4 e+a^2 c (2 b d+c e)-a b^2 (b d+3 c e)+a \left (a^2 c d+b^3 e-a b (b d+2 c e)\right ) x}{c^3 \left (a d^2-e (b d-c e)\right ) \left (c+b x+a x^2\right )}\right ) \, dx\\ &=-\frac{1}{2 c d x^2}+\frac{b d+c e}{c^2 d^2 x}+\frac{\left (b^2 d^2+b c d e-c \left (a d^2-c e^2\right )\right ) \log (x)}{c^3 d^3}-\frac{e^4 \log (d+e x)}{d^3 \left (a d^2-e (b d-c e)\right )}+\frac{\int \frac{b^4 e+a^2 c (2 b d+c e)-a b^2 (b d+3 c e)+a \left (a^2 c d+b^3 e-a b (b d+2 c e)\right ) x}{c+b x+a x^2} \, dx}{c^3 \left (a d^2-e (b d-c e)\right )}\\ &=-\frac{1}{2 c d x^2}+\frac{b d+c e}{c^2 d^2 x}+\frac{\left (b^2 d^2+b c d e-c \left (a d^2-c e^2\right )\right ) \log (x)}{c^3 d^3}-\frac{e^4 \log (d+e x)}{d^3 \left (a d^2-e (b d-c e)\right )}+\frac{\left (a^2 c d+b^3 e-a b (b d+2 c e)\right ) \int \frac{b+2 a x}{c+b x+a x^2} \, dx}{2 c^3 \left (a d^2-e (b d-c e)\right )}+\frac{\left (b^4 e+a^2 c (3 b d+2 c e)-a b^2 (b d+4 c e)\right ) \int \frac{1}{c+b x+a x^2} \, dx}{2 c^3 \left (a d^2-e (b d-c e)\right )}\\ &=-\frac{1}{2 c d x^2}+\frac{b d+c e}{c^2 d^2 x}+\frac{\left (b^2 d^2+b c d e-c \left (a d^2-c e^2\right )\right ) \log (x)}{c^3 d^3}-\frac{e^4 \log (d+e x)}{d^3 \left (a d^2-e (b d-c e)\right )}+\frac{\left (a^2 c d+b^3 e-a b (b d+2 c e)\right ) \log \left (c+b x+a x^2\right )}{2 c^3 \left (a d^2-e (b d-c e)\right )}-\frac{\left (b^4 e+a^2 c (3 b d+2 c e)-a b^2 (b d+4 c e)\right ) \operatorname{Subst}\left (\int \frac{1}{b^2-4 a c-x^2} \, dx,x,b+2 a x\right )}{c^3 \left (a d^2-e (b d-c e)\right )}\\ &=-\frac{1}{2 c d x^2}+\frac{b d+c e}{c^2 d^2 x}-\frac{\left (b^4 e+a^2 c (3 b d+2 c e)-a b^2 (b d+4 c e)\right ) \tanh ^{-1}\left (\frac{b+2 a x}{\sqrt{b^2-4 a c}}\right )}{c^3 \sqrt{b^2-4 a c} \left (a d^2-e (b d-c e)\right )}+\frac{\left (b^2 d^2+b c d e-c \left (a d^2-c e^2\right )\right ) \log (x)}{c^3 d^3}-\frac{e^4 \log (d+e x)}{d^3 \left (a d^2-e (b d-c e)\right )}+\frac{\left (a^2 c d+b^3 e-a b (b d+2 c e)\right ) \log \left (c+b x+a x^2\right )}{2 c^3 \left (a d^2-e (b d-c e)\right )}\\ \end{align*}

Mathematica [A]  time = 0.233504, size = 252, normalized size = 1. \[ \frac{\left (a^2 c d-a b (b d+2 c e)+b^3 e\right ) \log (x (a x+b)+c)}{2 c^3 \left (a d^2+e (c e-b d)\right )}-\frac{\left (a^2 c (3 b d+2 c e)-a b^2 (b d+4 c e)+b^4 e\right ) \tan ^{-1}\left (\frac{2 a x+b}{\sqrt{4 a c-b^2}}\right )}{c^3 \sqrt{4 a c-b^2} \left (e (b d-c e)-a d^2\right )}+\frac{\log (x) \left (c \left (c e^2-a d^2\right )+b^2 d^2+b c d e\right )}{c^3 d^3}-\frac{e^4 \log (d+e x)}{a d^5+d^3 e (c e-b d)}+\frac{b d+c e}{c^2 d^2 x}-\frac{1}{2 c d x^2} \]

Antiderivative was successfully verified.

[In]

Integrate[1/((a + c/x^2 + b/x)*x^5*(d + e*x)),x]

[Out]

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

________________________________________________________________________________________

Maple [B]  time = 0.012, size = 562, normalized size = 2.2 \begin{align*} -{\frac{{e}^{4}\ln \left ( ex+d \right ) }{{d}^{3} \left ( a{d}^{2}-bde+{e}^{2}c \right ) }}+{\frac{{a}^{2}\ln \left ( a{x}^{2}+bx+c \right ) d}{ \left ( 2\,a{d}^{2}-2\,bde+2\,{e}^{2}c \right ){c}^{2}}}-{\frac{a\ln \left ( a{x}^{2}+bx+c \right ){b}^{2}d}{ \left ( 2\,a{d}^{2}-2\,bde+2\,{e}^{2}c \right ){c}^{3}}}-{\frac{a\ln \left ( a{x}^{2}+bx+c \right ) be}{ \left ( a{d}^{2}-bde+{e}^{2}c \right ){c}^{2}}}+{\frac{\ln \left ( a{x}^{2}+bx+c \right ){b}^{3}e}{ \left ( 2\,a{d}^{2}-2\,bde+2\,{e}^{2}c \right ){c}^{3}}}+3\,{\frac{{a}^{2}bd}{ \left ( a{d}^{2}-bde+{e}^{2}c \right ){c}^{2}\sqrt{4\,ac-{b}^{2}}}\arctan \left ({\frac{2\,ax+b}{\sqrt{4\,ac-{b}^{2}}}} \right ) }+2\,{\frac{{a}^{2}e}{ \left ( a{d}^{2}-bde+{e}^{2}c \right ) c\sqrt{4\,ac-{b}^{2}}}\arctan \left ({\frac{2\,ax+b}{\sqrt{4\,ac-{b}^{2}}}} \right ) }-{\frac{a{b}^{3}d}{ \left ( a{d}^{2}-bde+{e}^{2}c \right ){c}^{3}}\arctan \left ({(2\,ax+b){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}} \right ){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}}-4\,{\frac{a{b}^{2}e}{ \left ( a{d}^{2}-bde+{e}^{2}c \right ){c}^{2}\sqrt{4\,ac-{b}^{2}}}\arctan \left ({\frac{2\,ax+b}{\sqrt{4\,ac-{b}^{2}}}} \right ) }+{\frac{{b}^{4}e}{ \left ( a{d}^{2}-bde+{e}^{2}c \right ){c}^{3}}\arctan \left ({(2\,ax+b){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}} \right ){\frac{1}{\sqrt{4\,ac-{b}^{2}}}}}-{\frac{1}{2\,cd{x}^{2}}}+{\frac{b}{{c}^{2}dx}}+{\frac{e}{c{d}^{2}x}}-{\frac{\ln \left ( x \right ) a}{{c}^{2}d}}+{\frac{\ln \left ( x \right ){b}^{2}}{{c}^{3}d}}+{\frac{b\ln \left ( x \right ) e}{{c}^{2}{d}^{2}}}+{\frac{\ln \left ( x \right ){e}^{2}}{c{d}^{3}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(a+c/x^2+b/x)/x^5/(e*x+d),x)

[Out]

-e^4/d^3/(a*d^2-b*d*e+c*e^2)*ln(e*x+d)+1/2/(a*d^2-b*d*e+c*e^2)/c^2*a^2*ln(a*x^2+b*x+c)*d-1/2/(a*d^2-b*d*e+c*e^
2)/c^3*a*ln(a*x^2+b*x+c)*b^2*d-1/(a*d^2-b*d*e+c*e^2)/c^2*a*ln(a*x^2+b*x+c)*b*e+1/2/(a*d^2-b*d*e+c*e^2)/c^3*ln(
a*x^2+b*x+c)*b^3*e+3/(a*d^2-b*d*e+c*e^2)/c^2/(4*a*c-b^2)^(1/2)*arctan((2*a*x+b)/(4*a*c-b^2)^(1/2))*a^2*b*d+2/(
a*d^2-b*d*e+c*e^2)/c/(4*a*c-b^2)^(1/2)*arctan((2*a*x+b)/(4*a*c-b^2)^(1/2))*a^2*e-1/(a*d^2-b*d*e+c*e^2)/c^3/(4*
a*c-b^2)^(1/2)*arctan((2*a*x+b)/(4*a*c-b^2)^(1/2))*a*b^3*d-4/(a*d^2-b*d*e+c*e^2)/c^2/(4*a*c-b^2)^(1/2)*arctan(
(2*a*x+b)/(4*a*c-b^2)^(1/2))*a*b^2*e+1/(a*d^2-b*d*e+c*e^2)/c^3/(4*a*c-b^2)^(1/2)*arctan((2*a*x+b)/(4*a*c-b^2)^
(1/2))*b^4*e-1/2/c/d/x^2+1/c^2/d/x*b+1/c/d^2/x*e-1/c^2/d*ln(x)*a+1/c^3/d*ln(x)*b^2+1/c^2/d^2*ln(x)*b*e+1/c/d^3
*ln(x)*e^2

________________________________________________________________________________________

Maxima [F(-2)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+c/x^2+b/x)/x^5/(e*x+d),x, algorithm="maxima")

[Out]

Exception raised: ValueError

________________________________________________________________________________________

Fricas [F(-1)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+c/x^2+b/x)/x^5/(e*x+d),x, algorithm="fricas")

[Out]

Timed out

________________________________________________________________________________________

Sympy [F(-1)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+c/x**2+b/x)/x**5/(e*x+d),x)

[Out]

Timed out

________________________________________________________________________________________

Giac [A]  time = 1.09894, size = 377, normalized size = 1.5 \begin{align*} -\frac{{\left (a b^{2} d - a^{2} c d - b^{3} e + 2 \, a b c e\right )} \log \left (a x^{2} + b x + c\right )}{2 \,{\left (a c^{3} d^{2} - b c^{3} d e + c^{4} e^{2}\right )}} - \frac{e^{5} \log \left ({\left | x e + d \right |}\right )}{a d^{5} e - b d^{4} e^{2} + c d^{3} e^{3}} - \frac{{\left (a b^{3} d - 3 \, a^{2} b c d - b^{4} e + 4 \, a b^{2} c e - 2 \, a^{2} c^{2} e\right )} \arctan \left (\frac{2 \, a x + b}{\sqrt{-b^{2} + 4 \, a c}}\right )}{{\left (a c^{3} d^{2} - b c^{3} d e + c^{4} e^{2}\right )} \sqrt{-b^{2} + 4 \, a c}} + \frac{{\left (b^{2} d^{2} - a c d^{2} + b c d e + c^{2} e^{2}\right )} \log \left ({\left | x \right |}\right )}{c^{3} d^{3}} - \frac{c^{2} d^{2} - 2 \,{\left (b c d^{2} + c^{2} d e\right )} x}{2 \, c^{3} d^{3} x^{2}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+c/x^2+b/x)/x^5/(e*x+d),x, algorithm="giac")

[Out]

-1/2*(a*b^2*d - a^2*c*d - b^3*e + 2*a*b*c*e)*log(a*x^2 + b*x + c)/(a*c^3*d^2 - b*c^3*d*e + c^4*e^2) - e^5*log(
abs(x*e + d))/(a*d^5*e - b*d^4*e^2 + c*d^3*e^3) - (a*b^3*d - 3*a^2*b*c*d - b^4*e + 4*a*b^2*c*e - 2*a^2*c^2*e)*
arctan((2*a*x + b)/sqrt(-b^2 + 4*a*c))/((a*c^3*d^2 - b*c^3*d*e + c^4*e^2)*sqrt(-b^2 + 4*a*c)) + (b^2*d^2 - a*c
*d^2 + b*c*d*e + c^2*e^2)*log(abs(x))/(c^3*d^3) - 1/2*(c^2*d^2 - 2*(b*c*d^2 + c^2*d*e)*x)/(c^3*d^3*x^2)