3.773 \(\int e^{(a+b x)^3} x \, dx\)

Optimal. Leaf size=80 \[ \frac {a (a+b x) \Gamma \left (\frac {1}{3},-(a+b x)^3\right )}{3 b^2 \sqrt [3]{-(a+b x)^3}}-\frac {(a+b x)^2 \Gamma \left (\frac {2}{3},-(a+b x)^3\right )}{3 b^2 \left (-(a+b x)^3\right )^{2/3}} \]

[Out]

1/3*a*(b*x+a)*GAMMA(1/3,-(b*x+a)^3)/b^2/(-(b*x+a)^3)^(1/3)-1/3*(b*x+a)^2*GAMMA(2/3,-(b*x+a)^3)/b^2/(-(b*x+a)^3
)^(2/3)

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Rubi [A]  time = 0.04, antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, integrand size = 11, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.273, Rules used = {2226, 2208, 2218} \[ \frac {a (a+b x) \text {Gamma}\left (\frac {1}{3},-(a+b x)^3\right )}{3 b^2 \sqrt [3]{-(a+b x)^3}}-\frac {(a+b x)^2 \text {Gamma}\left (\frac {2}{3},-(a+b x)^3\right )}{3 b^2 \left (-(a+b x)^3\right )^{2/3}} \]

Antiderivative was successfully verified.

[In]

Int[E^(a + b*x)^3*x,x]

[Out]

(a*(a + b*x)*Gamma[1/3, -(a + b*x)^3])/(3*b^2*(-(a + b*x)^3)^(1/3)) - ((a + b*x)^2*Gamma[2/3, -(a + b*x)^3])/(
3*b^2*(-(a + b*x)^3)^(2/3))

Rule 2208

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^(n_)), x_Symbol] :> -Simp[(F^a*(c + d*x)*Gamma[1/n, -(b*(c + d*x)
^n*Log[F])])/(d*n*(-(b*(c + d*x)^n*Log[F]))^(1/n)), x] /; FreeQ[{F, a, b, c, d, n}, x] &&  !IntegerQ[2/n]

Rule 2218

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^(n_))*((e_.) + (f_.)*(x_))^(m_.), x_Symbol] :> -Simp[(F^a*(e + f*
x)^(m + 1)*Gamma[(m + 1)/n, -(b*(c + d*x)^n*Log[F])])/(f*n*(-(b*(c + d*x)^n*Log[F]))^((m + 1)/n)), x] /; FreeQ
[{F, a, b, c, d, e, f, m, n}, x] && EqQ[d*e - c*f, 0]

Rule 2226

Int[(F_)^((a_.) + (b_.)*((c_.) + (d_.)*(x_))^(n_))*(u_), x_Symbol] :> Int[ExpandLinearProduct[F^(a + b*(c + d*
x)^n), u, c, d, x], x] /; FreeQ[{F, a, b, c, d, n}, x] && PolynomialQ[u, x]

Rubi steps

\begin {align*} \int e^{(a+b x)^3} x \, dx &=\int \left (-\frac {a e^{(a+b x)^3}}{b}+\frac {e^{(a+b x)^3} (a+b x)}{b}\right ) \, dx\\ &=\frac {\int e^{(a+b x)^3} (a+b x) \, dx}{b}-\frac {a \int e^{(a+b x)^3} \, dx}{b}\\ &=\frac {a (a+b x) \Gamma \left (\frac {1}{3},-(a+b x)^3\right )}{3 b^2 \sqrt [3]{-(a+b x)^3}}-\frac {(a+b x)^2 \Gamma \left (\frac {2}{3},-(a+b x)^3\right )}{3 b^2 \left (-(a+b x)^3\right )^{2/3}}\\ \end {align*}

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Mathematica [A]  time = 0.04, size = 74, normalized size = 0.92 \[ \frac {(a+b x) \left (a \sqrt [3]{-(a+b x)^3} \Gamma \left (\frac {1}{3},-(a+b x)^3\right )-(a+b x) \Gamma \left (\frac {2}{3},-(a+b x)^3\right )\right )}{3 b^2 \left (-(a+b x)^3\right )^{2/3}} \]

Antiderivative was successfully verified.

[In]

Integrate[E^(a + b*x)^3*x,x]

[Out]

((a + b*x)*(a*(-(a + b*x)^3)^(1/3)*Gamma[1/3, -(a + b*x)^3] - (a + b*x)*Gamma[2/3, -(a + b*x)^3]))/(3*b^2*(-(a
+ b*x)^3)^(2/3))

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fricas [A]  time = 0.48, size = 89, normalized size = 1.11 \[ -\frac {\left (-b^{3}\right )^{\frac {2}{3}} a \Gamma \left (\frac {1}{3}, -b^{3} x^{3} - 3 \, a b^{2} x^{2} - 3 \, a^{2} b x - a^{3}\right ) - \left (-b^{3}\right )^{\frac {1}{3}} b \Gamma \left (\frac {2}{3}, -b^{3} x^{3} - 3 \, a b^{2} x^{2} - 3 \, a^{2} b x - a^{3}\right )}{3 \, b^{4}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp((b*x+a)^3)*x,x, algorithm="fricas")

[Out]

-1/3*((-b^3)^(2/3)*a*gamma(1/3, -b^3*x^3 - 3*a*b^2*x^2 - 3*a^2*b*x - a^3) - (-b^3)^(1/3)*b*gamma(2/3, -b^3*x^3
- 3*a*b^2*x^2 - 3*a^2*b*x - a^3))/b^4

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giac [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int x e^{\left ({\left (b x + a\right )}^{3}\right )}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp((b*x+a)^3)*x,x, algorithm="giac")

[Out]

integrate(x*e^((b*x + a)^3), x)

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maple [F]  time = 0.06, size = 0, normalized size = 0.00 \[ \int x \,{\mathrm e}^{\left (b x +a \right )^{3}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(exp((b*x+a)^3)*x,x)

[Out]

int(exp((b*x+a)^3)*x,x)

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maxima [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int x e^{\left ({\left (b x + a\right )}^{3}\right )}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp((b*x+a)^3)*x,x, algorithm="maxima")

[Out]

integrate(x*e^((b*x + a)^3), x)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.01 \[ \int x\,{\mathrm {e}}^{{\left (a+b\,x\right )}^3} \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x*exp((a + b*x)^3),x)

[Out]

int(x*exp((a + b*x)^3), x)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ e^{a^{3}} \int x e^{b^{3} x^{3}} e^{3 a b^{2} x^{2}} e^{3 a^{2} b x}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(exp((b*x+a)**3)*x,x)

[Out]

exp(a**3)*Integral(x*exp(b**3*x**3)*exp(3*a*b**2*x**2)*exp(3*a**2*b*x), x)

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