3.1030 \(\int e^{2 \tanh ^{-1}(a x)} x^2 (c-a^2 c x^2)^2 \, dx\)

Optimal. Leaf size=48 \[ -\frac {1}{7} a^4 c^2 x^7-\frac {1}{3} a^3 c^2 x^6+\frac {1}{2} a c^2 x^4+\frac {c^2 x^3}{3} \]

[Out]

1/3*c^2*x^3+1/2*a*c^2*x^4-1/3*a^3*c^2*x^6-1/7*a^4*c^2*x^7

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Rubi [A]  time = 0.09, antiderivative size = 48, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 25, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.080, Rules used = {6150, 75} \[ -\frac {1}{7} a^4 c^2 x^7-\frac {1}{3} a^3 c^2 x^6+\frac {1}{2} a c^2 x^4+\frac {c^2 x^3}{3} \]

Antiderivative was successfully verified.

[In]

Int[E^(2*ArcTanh[a*x])*x^2*(c - a^2*c*x^2)^2,x]

[Out]

(c^2*x^3)/3 + (a*c^2*x^4)/2 - (a^3*c^2*x^6)/3 - (a^4*c^2*x^7)/7

Rule 75

Int[((d_.)*(x_))^(n_.)*((a_) + (b_.)*(x_))*((e_) + (f_.)*(x_))^(p_.), x_Symbol] :> Int[ExpandIntegrand[(a + b*
x)*(d*x)^n*(e + f*x)^p, x], x] /; FreeQ[{a, b, d, e, f, n}, x] && IGtQ[p, 0] && EqQ[b*e + a*f, 0] &&  !(ILtQ[n
+ p + 2, 0] && GtQ[n + 2*p, 0])

Rule 6150

Int[E^(ArcTanh[(a_.)*(x_)]*(n_.))*(x_)^(m_.)*((c_) + (d_.)*(x_)^2)^(p_.), x_Symbol] :> Dist[c^p, Int[x^m*(1 -
a*x)^(p - n/2)*(1 + a*x)^(p + n/2), x], x] /; FreeQ[{a, c, d, m, n, p}, x] && EqQ[a^2*c + d, 0] && (IntegerQ[p
] || GtQ[c, 0])

Rubi steps

\begin {align*} \int e^{2 \tanh ^{-1}(a x)} x^2 \left (c-a^2 c x^2\right )^2 \, dx &=c^2 \int x^2 (1-a x) (1+a x)^3 \, dx\\ &=c^2 \int \left (x^2+2 a x^3-2 a^3 x^5-a^4 x^6\right ) \, dx\\ &=\frac {c^2 x^3}{3}+\frac {1}{2} a c^2 x^4-\frac {1}{3} a^3 c^2 x^6-\frac {1}{7} a^4 c^2 x^7\\ \end {align*}

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Mathematica [A]  time = 0.02, size = 32, normalized size = 0.67 \[ -\frac {1}{42} c^2 x^3 \left (6 a^4 x^4+14 a^3 x^3-21 a x-14\right ) \]

Antiderivative was successfully verified.

[In]

Integrate[E^(2*ArcTanh[a*x])*x^2*(c - a^2*c*x^2)^2,x]

[Out]

-1/42*(c^2*x^3*(-14 - 21*a*x + 14*a^3*x^3 + 6*a^4*x^4))

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fricas [A]  time = 0.66, size = 40, normalized size = 0.83 \[ -\frac {1}{7} \, a^{4} c^{2} x^{7} - \frac {1}{3} \, a^{3} c^{2} x^{6} + \frac {1}{2} \, a c^{2} x^{4} + \frac {1}{3} \, c^{2} x^{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)^2/(-a^2*x^2+1)*x^2*(-a^2*c*x^2+c)^2,x, algorithm="fricas")

[Out]

-1/7*a^4*c^2*x^7 - 1/3*a^3*c^2*x^6 + 1/2*a*c^2*x^4 + 1/3*c^2*x^3

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giac [A]  time = 0.16, size = 40, normalized size = 0.83 \[ -\frac {1}{7} \, a^{4} c^{2} x^{7} - \frac {1}{3} \, a^{3} c^{2} x^{6} + \frac {1}{2} \, a c^{2} x^{4} + \frac {1}{3} \, c^{2} x^{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)^2/(-a^2*x^2+1)*x^2*(-a^2*c*x^2+c)^2,x, algorithm="giac")

[Out]

-1/7*a^4*c^2*x^7 - 1/3*a^3*c^2*x^6 + 1/2*a*c^2*x^4 + 1/3*c^2*x^3

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maple [A]  time = 0.03, size = 33, normalized size = 0.69 \[ c^{2} \left (-\frac {1}{7} x^{7} a^{4}-\frac {1}{3} x^{6} a^{3}+\frac {1}{2} x^{4} a +\frac {1}{3} x^{3}\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a*x+1)^2/(-a^2*x^2+1)*x^2*(-a^2*c*x^2+c)^2,x)

[Out]

c^2*(-1/7*x^7*a^4-1/3*x^6*a^3+1/2*x^4*a+1/3*x^3)

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maxima [A]  time = 0.32, size = 40, normalized size = 0.83 \[ -\frac {1}{7} \, a^{4} c^{2} x^{7} - \frac {1}{3} \, a^{3} c^{2} x^{6} + \frac {1}{2} \, a c^{2} x^{4} + \frac {1}{3} \, c^{2} x^{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)^2/(-a^2*x^2+1)*x^2*(-a^2*c*x^2+c)^2,x, algorithm="maxima")

[Out]

-1/7*a^4*c^2*x^7 - 1/3*a^3*c^2*x^6 + 1/2*a*c^2*x^4 + 1/3*c^2*x^3

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mupad [B]  time = 0.05, size = 40, normalized size = 0.83 \[ -\frac {a^4\,c^2\,x^7}{7}-\frac {a^3\,c^2\,x^6}{3}+\frac {a\,c^2\,x^4}{2}+\frac {c^2\,x^3}{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(-(x^2*(c - a^2*c*x^2)^2*(a*x + 1)^2)/(a^2*x^2 - 1),x)

[Out]

(c^2*x^3)/3 + (a*c^2*x^4)/2 - (a^3*c^2*x^6)/3 - (a^4*c^2*x^7)/7

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sympy [A]  time = 0.09, size = 41, normalized size = 0.85 \[ - \frac {a^{4} c^{2} x^{7}}{7} - \frac {a^{3} c^{2} x^{6}}{3} + \frac {a c^{2} x^{4}}{2} + \frac {c^{2} x^{3}}{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((a*x+1)**2/(-a**2*x**2+1)*x**2*(-a**2*c*x**2+c)**2,x)

[Out]

-a**4*c**2*x**7/7 - a**3*c**2*x**6/3 + a*c**2*x**4/2 + c**2*x**3/3

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