3.4.79 \(\int \frac {a+c x^2}{(d+e x)^5} \, dx\)

Optimal. Leaf size=59 \[ \frac {-a e^2-c d^2}{4 e^3 (d+e x)^4}-\frac {c}{2 e^3 (d+e x)^2}+\frac {2 c d}{3 e^3 (d+e x)^3} \]

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Rubi [A]  time = 0.03, antiderivative size = 57, normalized size of antiderivative = 0.97, number of steps used = 2, number of rules used = 1, integrand size = 15, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.067, Rules used = {697} \begin {gather*} -\frac {a e^2+c d^2}{4 e^3 (d+e x)^4}-\frac {c}{2 e^3 (d+e x)^2}+\frac {2 c d}{3 e^3 (d+e x)^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(a + c*x^2)/(d + e*x)^5,x]

[Out]

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

Rule 697

Int[((d_) + (e_.)*(x_))^(m_)*((a_) + (c_.)*(x_)^2)^(p_.), x_Symbol] :> Int[ExpandIntegrand[(d + e*x)^m*(a + c*
x^2)^p, x], x] /; FreeQ[{a, c, d, e, m}, x] && NeQ[c*d^2 + a*e^2, 0] && IGtQ[p, 0]

Rubi steps

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

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Mathematica [A]  time = 0.01, size = 40, normalized size = 0.68 \begin {gather*} -\frac {3 a e^2+c \left (d^2+4 d e x+6 e^2 x^2\right )}{12 e^3 (d+e x)^4} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(a + c*x^2)/(d + e*x)^5,x]

[Out]

-1/12*(3*a*e^2 + c*(d^2 + 4*d*e*x + 6*e^2*x^2))/(e^3*(d + e*x)^4)

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IntegrateAlgebraic [F]  time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {a+c x^2}{(d+e x)^5} \, dx \end {gather*}

Verification is not applicable to the result.

[In]

IntegrateAlgebraic[(a + c*x^2)/(d + e*x)^5,x]

[Out]

IntegrateAlgebraic[(a + c*x^2)/(d + e*x)^5, x]

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fricas [A]  time = 0.39, size = 75, normalized size = 1.27 \begin {gather*} -\frac {6 \, c e^{2} x^{2} + 4 \, c d e x + c d^{2} + 3 \, a e^{2}}{12 \, {\left (e^{7} x^{4} + 4 \, d e^{6} x^{3} + 6 \, d^{2} e^{5} x^{2} + 4 \, d^{3} e^{4} x + d^{4} e^{3}\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^2+a)/(e*x+d)^5,x, algorithm="fricas")

[Out]

-1/12*(6*c*e^2*x^2 + 4*c*d*e*x + c*d^2 + 3*a*e^2)/(e^7*x^4 + 4*d*e^6*x^3 + 6*d^2*e^5*x^2 + 4*d^3*e^4*x + d^4*e
^3)

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giac [A]  time = 0.15, size = 59, normalized size = 1.00 \begin {gather*} -\frac {1}{12} \, {\left (\frac {6 \, c e^{\left (-2\right )}}{{\left (x e + d\right )}^{2}} - \frac {8 \, c d e^{\left (-2\right )}}{{\left (x e + d\right )}^{3}} + \frac {3 \, c d^{2} e^{\left (-2\right )}}{{\left (x e + d\right )}^{4}} + \frac {3 \, a}{{\left (x e + d\right )}^{4}}\right )} e^{\left (-1\right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^2+a)/(e*x+d)^5,x, algorithm="giac")

[Out]

-1/12*(6*c*e^(-2)/(x*e + d)^2 - 8*c*d*e^(-2)/(x*e + d)^3 + 3*c*d^2*e^(-2)/(x*e + d)^4 + 3*a/(x*e + d)^4)*e^(-1
)

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maple [A]  time = 0.05, size = 52, normalized size = 0.88 \begin {gather*} \frac {2 c d}{3 \left (e x +d \right )^{3} e^{3}}-\frac {c}{2 \left (e x +d \right )^{2} e^{3}}-\frac {a \,e^{2}+c \,d^{2}}{4 \left (e x +d \right )^{4} e^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((c*x^2+a)/(e*x+d)^5,x)

[Out]

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

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maxima [A]  time = 1.30, size = 75, normalized size = 1.27 \begin {gather*} -\frac {6 \, c e^{2} x^{2} + 4 \, c d e x + c d^{2} + 3 \, a e^{2}}{12 \, {\left (e^{7} x^{4} + 4 \, d e^{6} x^{3} + 6 \, d^{2} e^{5} x^{2} + 4 \, d^{3} e^{4} x + d^{4} e^{3}\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^2+a)/(e*x+d)^5,x, algorithm="maxima")

[Out]

-1/12*(6*c*e^2*x^2 + 4*c*d*e*x + c*d^2 + 3*a*e^2)/(e^7*x^4 + 4*d*e^6*x^3 + 6*d^2*e^5*x^2 + 4*d^3*e^4*x + d^4*e
^3)

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mupad [B]  time = 0.05, size = 77, normalized size = 1.31 \begin {gather*} -\frac {\frac {c\,d^2+3\,a\,e^2}{12\,e^3}+\frac {c\,x^2}{2\,e}+\frac {c\,d\,x}{3\,e^2}}{d^4+4\,d^3\,e\,x+6\,d^2\,e^2\,x^2+4\,d\,e^3\,x^3+e^4\,x^4} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a + c*x^2)/(d + e*x)^5,x)

[Out]

-((3*a*e^2 + c*d^2)/(12*e^3) + (c*x^2)/(2*e) + (c*d*x)/(3*e^2))/(d^4 + e^4*x^4 + 4*d*e^3*x^3 + 6*d^2*e^2*x^2 +
4*d^3*e*x)

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sympy [A]  time = 0.55, size = 80, normalized size = 1.36 \begin {gather*} \frac {- 3 a e^{2} - c d^{2} - 4 c d e x - 6 c e^{2} x^{2}}{12 d^{4} e^{3} + 48 d^{3} e^{4} x + 72 d^{2} e^{5} x^{2} + 48 d e^{6} x^{3} + 12 e^{7} x^{4}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x**2+a)/(e*x+d)**5,x)

[Out]

(-3*a*e**2 - c*d**2 - 4*c*d*e*x - 6*c*e**2*x**2)/(12*d**4*e**3 + 48*d**3*e**4*x + 72*d**2*e**5*x**2 + 48*d*e**
6*x**3 + 12*e**7*x**4)

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