3.11.5 \(\int \frac {1}{(d+e x)^2 (c d^2+2 c d e x+c e^2 x^2)} \, dx\) [1005]

Optimal. Leaf size=17 \[ -\frac {1}{3 c e (d+e x)^3} \]

[Out]

-1/3/c/e/(e*x+d)^3

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Rubi [A]
time = 0.00, antiderivative size = 17, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, integrand size = 30, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {27, 12, 32} \begin {gather*} -\frac {1}{3 c e (d+e x)^3} \end {gather*}

Antiderivative was successfully verified.

[In]

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

[Out]

-1/3*1/(c*e*(d + e*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 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 32

Int[((a_.) + (b_.)*(x_))^(m_), x_Symbol] :> Simp[(a + b*x)^(m + 1)/(b*(m + 1)), x] /; FreeQ[{a, b, m}, x] && N
eQ[m, -1]

Rubi steps

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

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Mathematica [A]
time = 0.00, size = 17, normalized size = 1.00 \begin {gather*} -\frac {1}{3 c e (d+e x)^3} \end {gather*}

Antiderivative was successfully verified.

[In]

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

[Out]

-1/3*1/(c*e*(d + e*x)^3)

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Maple [A]
time = 0.60, size = 16, normalized size = 0.94

method	result	size
default	\(-\frac {1}{3 c e \left (e x +d \right )^{3}}\)	\(16\)
norman	\(-\frac {1}{3 c e \left (e x +d \right )^{3}}\)	\(16\)
gosper	\(-\frac {1}{3 \left (e x +d \right ) e c \left (e^{2} x^{2}+2 d x e +d^{2}\right )}\)	\(34\)
risch	\(-\frac {1}{3 \left (e x +d \right ) e c \left (e^{2} x^{2}+2 d x e +d^{2}\right )}\)	\(34\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(e*x+d)^2/(c*e^2*x^2+2*c*d*e*x+c*d^2),x,method=_RETURNVERBOSE)

[Out]

-1/3/c/e/(e*x+d)^3

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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 37 vs. \(2 (15) = 30\).
time = 0.27, size = 37, normalized size = 2.18 \begin {gather*} -\frac {1}{3 \, {\left (c x^{3} e^{4} + 3 \, c d x^{2} e^{3} + 3 \, c d^{2} x e^{2} + c d^{3} e\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-1/3/(c*x^3*e^4 + 3*c*d*x^2*e^3 + 3*c*d^2*x*e^2 + c*d^3*e)

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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 37 vs. \(2 (15) = 30\).
time = 4.05, size = 37, normalized size = 2.18 \begin {gather*} -\frac {1}{3 \, {\left (c x^{3} e^{4} + 3 \, c d x^{2} e^{3} + 3 \, c d^{2} x e^{2} + c d^{3} e\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-1/3/(c*x^3*e^4 + 3*c*d*x^2*e^3 + 3*c*d^2*x*e^2 + c*d^3*e)

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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 44 vs. \(2 (14) = 28\).
time = 0.11, size = 44, normalized size = 2.59 \begin {gather*} - \frac {1}{3 c d^{3} e + 9 c d^{2} e^{2} x + 9 c d e^{3} x^{2} + 3 c e^{4} x^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-1/(3*c*d**3*e + 9*c*d**2*e**2*x + 9*c*d*e**3*x**2 + 3*c*e**4*x**3)

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Giac [A]
time = 1.03, size = 15, normalized size = 0.88 \begin {gather*} -\frac {e^{\left (-1\right )}}{3 \, {\left (x e + d\right )}^{3} c} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-1/3*e^(-1)/((x*e + d)^3*c)

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Mupad [B]
time = 0.40, size = 41, normalized size = 2.41 \begin {gather*} -\frac {1}{3\,c\,d^3\,e+9\,c\,d^2\,e^2\,x+9\,c\,d\,e^3\,x^2+3\,c\,e^4\,x^3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-1/(3*c*e^4*x^3 + 3*c*d^3*e + 9*c*d^2*e^2*x + 9*c*d*e^3*x^2)

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