3.55.14 \(\int \frac {(3+x)^3 (30-68 x+30 x^2-4 x^3)}{27-9 x-3 x^2+x^3} \, dx\)

Optimal. Leaf size=20 \[ \left (3-\frac {2}{3-x}-x\right ) (3+x)^3 \]

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Rubi [A]  time = 0.07, antiderivative size = 28, normalized size of antiderivative = 1.40, number of steps used = 4, number of rules used = 3, integrand size = 36, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {1586, 27, 1620} \begin {gather*} -x^4-6 x^3+2 x^2+78 x-\frac {432}{3-x} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[((3 + x)^3*(30 - 68*x + 30*x^2 - 4*x^3))/(27 - 9*x - 3*x^2 + x^3),x]

[Out]

-432/(3 - x) + 78*x + 2*x^2 - 6*x^3 - x^4

Rule 27

Int[(u_.)*((a_) + (b_.)*(x_) + (c_.)*(x_)^2)^(p_.), x_Symbol] :> Int[u*Cancel[(b/2 + c*x)^(2*p)/c^p], x] /; Fr
eeQ[{a, b, c}, x] && EqQ[b^2 - 4*a*c, 0] && IntegerQ[p]

Rule 1586

Int[(u_.)*(Px_)^(p_.)*(Qx_)^(q_.), x_Symbol] :> Int[u*PolynomialQuotient[Px, Qx, x]^p*Qx^(p + q), x] /; FreeQ[
q, x] && PolyQ[Px, x] && PolyQ[Qx, x] && EqQ[PolynomialRemainder[Px, Qx, x], 0] && IntegerQ[p] && LtQ[p*q, 0]

Rule 1620

Int[(Px_)*((a_.) + (b_.)*(x_))^(m_.)*((c_.) + (d_.)*(x_))^(n_.), x_Symbol] :> Int[ExpandIntegrand[Px*(a + b*x)
^m*(c + d*x)^n, x], x] /; FreeQ[{a, b, c, d, m, n}, x] && PolyQ[Px, x] && (IntegersQ[m, n] || IGtQ[m, -2]) &&
GtQ[Expon[Px, x], 2]

Rubi steps

\begin {gather*} \begin {aligned} \text {integral} &=\int \frac {(3+x)^2 \left (30-68 x+30 x^2-4 x^3\right )}{9-6 x+x^2} \, dx\\ &=\int \frac {(3+x)^2 \left (30-68 x+30 x^2-4 x^3\right )}{(-3+x)^2} \, dx\\ &=\int \left (78-\frac {432}{(-3+x)^2}+4 x-18 x^2-4 x^3\right ) \, dx\\ &=-\frac {432}{3-x}+78 x+2 x^2-6 x^3-x^4\\ \end {aligned} \end {gather*}

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Mathematica [A]  time = 0.01, size = 30, normalized size = 1.50 \begin {gather*} -\frac {-459+243 x-72 x^2-20 x^3+3 x^4+x^5}{-3+x} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[((3 + x)^3*(30 - 68*x + 30*x^2 - 4*x^3))/(27 - 9*x - 3*x^2 + x^3),x]

[Out]

-((-459 + 243*x - 72*x^2 - 20*x^3 + 3*x^4 + x^5)/(-3 + x))

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fricas [A]  time = 0.47, size = 30, normalized size = 1.50 \begin {gather*} -\frac {x^{5} + 3 \, x^{4} - 20 \, x^{3} - 72 \, x^{2} + 234 \, x - 432}{x - 3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((-4*x^3+30*x^2-68*x+30)*(3+x)^3/(x^3-3*x^2-9*x+27),x, algorithm="fricas")

[Out]

-(x^5 + 3*x^4 - 20*x^3 - 72*x^2 + 234*x - 432)/(x - 3)

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giac [A]  time = 0.14, size = 26, normalized size = 1.30 \begin {gather*} -x^{4} - 6 \, x^{3} + 2 \, x^{2} + 78 \, x + \frac {432}{x - 3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((-4*x^3+30*x^2-68*x+30)*(3+x)^3/(x^3-3*x^2-9*x+27),x, algorithm="giac")

[Out]

-x^4 - 6*x^3 + 2*x^2 + 78*x + 432/(x - 3)

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maple [A]  time = 0.20, size = 27, normalized size = 1.35

method	result	size
default	\(-x^{4}-6 x^{3}+2 x^{2}+78 x +\frac {432}{x -3}\)	\(27\)
risch	\(-x^{4}-6 x^{3}+2 x^{2}+78 x +\frac {432}{x -3}\)	\(27\)
gosper	\(-\frac {x^{5}+3 x^{4}-20 x^{3}-72 x^{2}+270}{x -3}\)	\(28\)
norman	\(\frac {-x^{5}-3 x^{4}+20 x^{3}+72 x^{2}-270}{x -3}\)	\(29\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((-4*x^3+30*x^2-68*x+30)*(3+x)^3/(x^3-3*x^2-9*x+27),x,method=_RETURNVERBOSE)

[Out]

-x^4-6*x^3+2*x^2+78*x+432/(x-3)

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maxima [A]  time = 0.36, size = 26, normalized size = 1.30 \begin {gather*} -x^{4} - 6 \, x^{3} + 2 \, x^{2} + 78 \, x + \frac {432}{x - 3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((-4*x^3+30*x^2-68*x+30)*(3+x)^3/(x^3-3*x^2-9*x+27),x, algorithm="maxima")

[Out]

-x^4 - 6*x^3 + 2*x^2 + 78*x + 432/(x - 3)

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mupad [B]  time = 0.04, size = 26, normalized size = 1.30 \begin {gather*} 78\,x+\frac {432}{x-3}+2\,x^2-6\,x^3-x^4 \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(((x + 3)^3*(68*x - 30*x^2 + 4*x^3 - 30))/(9*x + 3*x^2 - x^3 - 27),x)

[Out]

78*x + 432/(x - 3) + 2*x^2 - 6*x^3 - x^4

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sympy [A]  time = 0.09, size = 20, normalized size = 1.00 \begin {gather*} - x^{4} - 6 x^{3} + 2 x^{2} + 78 x + \frac {432}{x - 3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((-4*x**3+30*x**2-68*x+30)*(3+x)**3/(x**3-3*x**2-9*x+27),x)

[Out]

-x**4 - 6*x**3 + 2*x**2 + 78*x + 432/(x - 3)

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