3.12.64 \(\int \frac {a^2+2 a b x+b^2 x^2}{(d+e x)^7} \, dx\)

Optimal. Leaf size=65 \[ \frac {2 b (b d-a e)}{5 e^3 (d+e x)^5}-\frac {(b d-a e)^2}{6 e^3 (d+e x)^6}-\frac {b^2}{4 e^3 (d+e x)^4} \]

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Rubi [A]  time = 0.04, antiderivative size = 65, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 24, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.083, Rules used = {27, 43} \begin {gather*} \frac {2 b (b d-a e)}{5 e^3 (d+e x)^5}-\frac {(b d-a e)^2}{6 e^3 (d+e x)^6}-\frac {b^2}{4 e^3 (d+e x)^4} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(a^2 + 2*a*b*x + b^2*x^2)/(d + e*x)^7,x]

[Out]

-(b*d - a*e)^2/(6*e^3*(d + e*x)^6) + (2*b*(b*d - a*e))/(5*e^3*(d + e*x)^5) - b^2/(4*e^3*(d + e*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 43

Int[((a_.) + (b_.)*(x_))^(m_.)*((c_.) + (d_.)*(x_))^(n_.), x_Symbol] :> Int[ExpandIntegrand[(a + b*x)^m*(c + d
*x)^n, x], x] /; FreeQ[{a, b, c, d, n}, x] && NeQ[b*c - a*d, 0] && IGtQ[m, 0] && ( !IntegerQ[n] || (EqQ[c, 0]
&& LeQ[7*m + 4*n + 4, 0]) || LtQ[9*m + 5*(n + 1), 0] || GtQ[m + n + 2, 0])

Rubi steps

\begin {align*} \int \frac {a^2+2 a b x+b^2 x^2}{(d+e x)^7} \, dx &=\int \frac {(a+b x)^2}{(d+e x)^7} \, dx\\ &=\int \left (\frac {(-b d+a e)^2}{e^2 (d+e x)^7}-\frac {2 b (b d-a e)}{e^2 (d+e x)^6}+\frac {b^2}{e^2 (d+e x)^5}\right ) \, dx\\ &=-\frac {(b d-a e)^2}{6 e^3 (d+e x)^6}+\frac {2 b (b d-a e)}{5 e^3 (d+e x)^5}-\frac {b^2}{4 e^3 (d+e x)^4}\\ \end {align*}

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Mathematica [A]  time = 0.02, size = 55, normalized size = 0.85 \begin {gather*} -\frac {10 a^2 e^2+4 a b e (d+6 e x)+b^2 \left (d^2+6 d e x+15 e^2 x^2\right )}{60 e^3 (d+e x)^6} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(a^2 + 2*a*b*x + b^2*x^2)/(d + e*x)^7,x]

[Out]

-1/60*(10*a^2*e^2 + 4*a*b*e*(d + 6*e*x) + b^2*(d^2 + 6*d*e*x + 15*e^2*x^2))/(e^3*(d + e*x)^6)

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IntegrateAlgebraic [F]  time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {a^2+2 a b x+b^2 x^2}{(d+e x)^7} \, dx \end {gather*}

Verification is not applicable to the result.

[In]

IntegrateAlgebraic[(a^2 + 2*a*b*x + b^2*x^2)/(d + e*x)^7,x]

[Out]

IntegrateAlgebraic[(a^2 + 2*a*b*x + b^2*x^2)/(d + e*x)^7, x]

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fricas [B]  time = 0.39, size = 120, normalized size = 1.85 \begin {gather*} -\frac {15 \, b^{2} e^{2} x^{2} + b^{2} d^{2} + 4 \, a b d e + 10 \, a^{2} e^{2} + 6 \, {\left (b^{2} d e + 4 \, a b e^{2}\right )} x}{60 \, {\left (e^{9} x^{6} + 6 \, d e^{8} x^{5} + 15 \, d^{2} e^{7} x^{4} + 20 \, d^{3} e^{6} x^{3} + 15 \, d^{4} e^{5} x^{2} + 6 \, d^{5} e^{4} x + d^{6} e^{3}\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b^2*x^2+2*a*b*x+a^2)/(e*x+d)^7,x, algorithm="fricas")

[Out]

-1/60*(15*b^2*e^2*x^2 + b^2*d^2 + 4*a*b*d*e + 10*a^2*e^2 + 6*(b^2*d*e + 4*a*b*e^2)*x)/(e^9*x^6 + 6*d*e^8*x^5 +
15*d^2*e^7*x^4 + 20*d^3*e^6*x^3 + 15*d^4*e^5*x^2 + 6*d^5*e^4*x + d^6*e^3)

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giac [A]  time = 0.18, size = 60, normalized size = 0.92 \begin {gather*} -\frac {{\left (15 \, b^{2} x^{2} e^{2} + 6 \, b^{2} d x e + b^{2} d^{2} + 24 \, a b x e^{2} + 4 \, a b d e + 10 \, a^{2} e^{2}\right )} e^{\left (-3\right )}}{60 \, {\left (x e + d\right )}^{6}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b^2*x^2+2*a*b*x+a^2)/(e*x+d)^7,x, algorithm="giac")

[Out]

-1/60*(15*b^2*x^2*e^2 + 6*b^2*d*x*e + b^2*d^2 + 24*a*b*x*e^2 + 4*a*b*d*e + 10*a^2*e^2)*e^(-3)/(x*e + d)^6

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maple [A]  time = 0.05, size = 71, normalized size = 1.09 \begin {gather*} -\frac {b^{2}}{4 \left (e x +d \right )^{4} e^{3}}-\frac {2 \left (a e -b d \right ) b}{5 \left (e x +d \right )^{5} e^{3}}-\frac {a^{2} e^{2}-2 a b d e +b^{2} d^{2}}{6 \left (e x +d \right )^{6} e^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b^2*x^2+2*a*b*x+a^2)/(e*x+d)^7,x)

[Out]

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

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maxima [B]  time = 1.44, size = 120, normalized size = 1.85 \begin {gather*} -\frac {15 \, b^{2} e^{2} x^{2} + b^{2} d^{2} + 4 \, a b d e + 10 \, a^{2} e^{2} + 6 \, {\left (b^{2} d e + 4 \, a b e^{2}\right )} x}{60 \, {\left (e^{9} x^{6} + 6 \, d e^{8} x^{5} + 15 \, d^{2} e^{7} x^{4} + 20 \, d^{3} e^{6} x^{3} + 15 \, d^{4} e^{5} x^{2} + 6 \, d^{5} e^{4} x + d^{6} e^{3}\right )}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b^2*x^2+2*a*b*x+a^2)/(e*x+d)^7,x, algorithm="maxima")

[Out]

-1/60*(15*b^2*e^2*x^2 + b^2*d^2 + 4*a*b*d*e + 10*a^2*e^2 + 6*(b^2*d*e + 4*a*b*e^2)*x)/(e^9*x^6 + 6*d*e^8*x^5 +
15*d^2*e^7*x^4 + 20*d^3*e^6*x^3 + 15*d^4*e^5*x^2 + 6*d^5*e^4*x + d^6*e^3)

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mupad [B]  time = 0.55, size = 118, normalized size = 1.82 \begin {gather*} -\frac {\frac {10\,a^2\,e^2+4\,a\,b\,d\,e+b^2\,d^2}{60\,e^3}+\frac {b^2\,x^2}{4\,e}+\frac {b\,x\,\left (4\,a\,e+b\,d\right )}{10\,e^2}}{d^6+6\,d^5\,e\,x+15\,d^4\,e^2\,x^2+20\,d^3\,e^3\,x^3+15\,d^2\,e^4\,x^4+6\,d\,e^5\,x^5+e^6\,x^6} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((a^2 + b^2*x^2 + 2*a*b*x)/(d + e*x)^7,x)

[Out]

-((10*a^2*e^2 + b^2*d^2 + 4*a*b*d*e)/(60*e^3) + (b^2*x^2)/(4*e) + (b*x*(4*a*e + b*d))/(10*e^2))/(d^6 + e^6*x^6
+ 6*d*e^5*x^5 + 15*d^4*e^2*x^2 + 20*d^3*e^3*x^3 + 15*d^2*e^4*x^4 + 6*d^5*e*x)

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sympy [B]  time = 1.18, size = 128, normalized size = 1.97 \begin {gather*} \frac {- 10 a^{2} e^{2} - 4 a b d e - b^{2} d^{2} - 15 b^{2} e^{2} x^{2} + x \left (- 24 a b e^{2} - 6 b^{2} d e\right )}{60 d^{6} e^{3} + 360 d^{5} e^{4} x + 900 d^{4} e^{5} x^{2} + 1200 d^{3} e^{6} x^{3} + 900 d^{2} e^{7} x^{4} + 360 d e^{8} x^{5} + 60 e^{9} x^{6}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b**2*x**2+2*a*b*x+a**2)/(e*x+d)**7,x)

[Out]

(-10*a**2*e**2 - 4*a*b*d*e - b**2*d**2 - 15*b**2*e**2*x**2 + x*(-24*a*b*e**2 - 6*b**2*d*e))/(60*d**6*e**3 + 36
0*d**5*e**4*x + 900*d**4*e**5*x**2 + 1200*d**3*e**6*x**3 + 900*d**2*e**7*x**4 + 360*d*e**8*x**5 + 60*e**9*x**6
)

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