3.51.31 \(\int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{3 x^2} \, dx\)

Optimal. Leaf size=23 \[ -2+x+\frac {1}{3} \left (\frac {13-e+e^{2 x}}{x}+x\right ) \]

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Rubi [A]  time = 0.05, antiderivative size = 30, normalized size of antiderivative = 1.30, number of steps used = 6, number of rules used = 3, integrand size = 26, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.115, Rules used = {12, 14, 2197} \begin {gather*} \frac {4 x}{3}+\frac {e^{2 x}}{3 x}+\frac {13-e}{3 x} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(-13 + E + 4*x^2 + E^(2*x)*(-1 + 2*x))/(3*x^2),x]

[Out]

(13 - E)/(3*x) + E^(2*x)/(3*x) + (4*x)/3

Rule 12

Int[(a_)*(u_), x_Symbol] :> Dist[a, Int[u, x], x] /; FreeQ[a, x] &&  !MatchQ[u, (b_)*(v_) /; FreeQ[b, x]]

Rule 14

Int[(u_)*((c_.)*(x_))^(m_.), x_Symbol] :> Int[ExpandIntegrand[(c*x)^m*u, x], x] /; FreeQ[{c, m}, x] && SumQ[u]
&&  !LinearQ[u, x] &&  !MatchQ[u, (a_) + (b_.)*(v_) /; FreeQ[{a, b}, x] && InverseFunctionQ[v]]

Rule 2197

Int[(F_)^((c_.)*(v_))*(u_)^(m_.)*(w_), x_Symbol] :> With[{b = Coefficient[v, x, 1], d = Coefficient[u, x, 0],
e = Coefficient[u, x, 1], f = Coefficient[w, x, 0], g = Coefficient[w, x, 1]}, Simp[(g*u^(m + 1)*F^(c*v))/(b*c
*e*Log[F]), x] /; EqQ[e*g*(m + 1) - b*c*(e*f - d*g)*Log[F], 0]] /; FreeQ[{F, c, m}, x] && LinearQ[{u, v, w}, x
]

Rubi steps

\begin {gather*} \begin {aligned} \text {integral} &=\frac {1}{3} \int \frac {-13+e+4 x^2+e^{2 x} (-1+2 x)}{x^2} \, dx\\ &=\frac {1}{3} \int \left (\frac {e^{2 x} (-1+2 x)}{x^2}+\frac {-13+e+4 x^2}{x^2}\right ) \, dx\\ &=\frac {1}{3} \int \frac {e^{2 x} (-1+2 x)}{x^2} \, dx+\frac {1}{3} \int \frac {-13+e+4 x^2}{x^2} \, dx\\ &=\frac {e^{2 x}}{3 x}+\frac {1}{3} \int \left (4+\frac {-13+e}{x^2}\right ) \, dx\\ &=\frac {13-e}{3 x}+\frac {e^{2 x}}{3 x}+\frac {4 x}{3}\\ \end {aligned} \end {gather*}

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Mathematica [A]  time = 0.02, size = 22, normalized size = 0.96 \begin {gather*} \frac {13-e+e^{2 x}+4 x^2}{3 x} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(-13 + E + 4*x^2 + E^(2*x)*(-1 + 2*x))/(3*x^2),x]

[Out]

(13 - E + E^(2*x) + 4*x^2)/(3*x)

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fricas [A]  time = 0.81, size = 20, normalized size = 0.87 \begin {gather*} \frac {4 \, x^{2} - e + e^{\left (2 \, x\right )} + 13}{3 \, x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/3*((2*x-1)*exp(x)^2+exp(1)+4*x^2-13)/x^2,x, algorithm="fricas")

[Out]

1/3*(4*x^2 - e + e^(2*x) + 13)/x

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giac [A]  time = 0.14, size = 20, normalized size = 0.87 \begin {gather*} \frac {4 \, x^{2} - e + e^{\left (2 \, x\right )} + 13}{3 \, x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/3*((2*x-1)*exp(x)^2+exp(1)+4*x^2-13)/x^2,x, algorithm="giac")

[Out]

1/3*(4*x^2 - e + e^(2*x) + 13)/x

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maple [A]  time = 0.04, size = 22, normalized size = 0.96

method	result	size
norman	\(\frac {\frac {4 x^{2}}{3}+\frac {{\mathrm e}^{2 x}}{3}-\frac {{\mathrm e}}{3}+\frac {13}{3}}{x}\)	\(22\)
default	\(\frac {4 x}{3}-\frac {{\mathrm e}}{3 x}+\frac {13}{3 x}+\frac {{\mathrm e}^{2 x}}{3 x}\)	\(26\)
risch	\(\frac {4 x}{3}-\frac {{\mathrm e}}{3 x}+\frac {13}{3 x}+\frac {{\mathrm e}^{2 x}}{3 x}\)	\(26\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/3*((2*x-1)*exp(x)^2+exp(1)+4*x^2-13)/x^2,x,method=_RETURNVERBOSE)

[Out]

(4/3*x^2+1/3*exp(x)^2-1/3*exp(1)+13/3)/x

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maxima [C]  time = 0.38, size = 29, normalized size = 1.26 \begin {gather*} \frac {4}{3} \, x - \frac {e}{3 \, x} + \frac {13}{3 \, x} + \frac {2}{3} \, {\rm Ei}\left (2 \, x\right ) - \frac {2}{3} \, \Gamma \left (-1, -2 \, x\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/3*((2*x-1)*exp(x)^2+exp(1)+4*x^2-13)/x^2,x, algorithm="maxima")

[Out]

4/3*x - 1/3*e/x + 13/3/x + 2/3*Ei(2*x) - 2/3*gamma(-1, -2*x)

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mupad [B]  time = 0.06, size = 20, normalized size = 0.87 \begin {gather*} \frac {4\,x}{3}+\frac {\frac {{\mathrm {e}}^{2\,x}}{3}-\frac {\mathrm {e}}{3}+\frac {13}{3}}{x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((exp(1)/3 + (exp(2*x)*(2*x - 1))/3 + (4*x^2)/3 - 13/3)/x^2,x)

[Out]

(4*x)/3 + (exp(2*x)/3 - exp(1)/3 + 13/3)/x

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sympy [A]  time = 0.12, size = 20, normalized size = 0.87 \begin {gather*} \frac {4 x}{3} + \frac {e^{2 x}}{3 x} + \frac {13 - e}{3 x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/3*((2*x-1)*exp(x)**2+exp(1)+4*x**2-13)/x**2,x)

[Out]

4*x/3 + exp(2*x)/(3*x) + (13 - E)/(3*x)

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