3.7.65 \(\int x^{7/2} (A+B x) (a^2+2 a b x+b^2 x^2)^2 \, dx\)

Optimal. Leaf size=111 \[ \frac {2}{9} a^4 A x^{9/2}+\frac {2}{11} a^3 x^{11/2} (a B+4 A b)+\frac {4}{13} a^2 b x^{13/2} (2 a B+3 A b)+\frac {2}{17} b^3 x^{17/2} (4 a B+A b)+\frac {4}{15} a b^2 x^{15/2} (3 a B+2 A b)+\frac {2}{19} b^4 B x^{19/2} \]

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Rubi [A]  time = 0.06, antiderivative size = 111, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 29, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.069, Rules used = {27, 76} \begin {gather*} \frac {4}{13} a^2 b x^{13/2} (2 a B+3 A b)+\frac {2}{11} a^3 x^{11/2} (a B+4 A b)+\frac {2}{9} a^4 A x^{9/2}+\frac {2}{17} b^3 x^{17/2} (4 a B+A b)+\frac {4}{15} a b^2 x^{15/2} (3 a B+2 A b)+\frac {2}{19} b^4 B x^{19/2} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[x^(7/2)*(A + B*x)*(a^2 + 2*a*b*x + b^2*x^2)^2,x]

[Out]

(2*a^4*A*x^(9/2))/9 + (2*a^3*(4*A*b + a*B)*x^(11/2))/11 + (4*a^2*b*(3*A*b + 2*a*B)*x^(13/2))/13 + (4*a*b^2*(2*
A*b + 3*a*B)*x^(15/2))/15 + (2*b^3*(A*b + 4*a*B)*x^(17/2))/17 + (2*b^4*B*x^(19/2))/19

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 76

Int[((d_.)*(x_))^(n_.)*((a_) + (b_.)*(x_))*((e_) + (f_.)*(x_))^(p_.), x_Symbol] :> Int[ExpandIntegrand[(a + b*
x)*(d*x)^n*(e + f*x)^p, x], x] /; FreeQ[{a, b, d, e, f, n}, x] && IGtQ[p, 0] && (NeQ[n, -1] || EqQ[p, 1]) && N
eQ[b*e + a*f, 0] && ( !IntegerQ[n] || LtQ[9*p + 5*n, 0] || GeQ[n + p + 1, 0] || (GeQ[n + p + 2, 0] && Rational
Q[a, b, d, e, f])) && (NeQ[n + p + 3, 0] || EqQ[p, 1])

Rubi steps

\begin {align*} \int x^{7/2} (A+B x) \left (a^2+2 a b x+b^2 x^2\right )^2 \, dx &=\int x^{7/2} (a+b x)^4 (A+B x) \, dx\\ &=\int \left (a^4 A x^{7/2}+a^3 (4 A b+a B) x^{9/2}+2 a^2 b (3 A b+2 a B) x^{11/2}+2 a b^2 (2 A b+3 a B) x^{13/2}+b^3 (A b+4 a B) x^{15/2}+b^4 B x^{17/2}\right ) \, dx\\ &=\frac {2}{9} a^4 A x^{9/2}+\frac {2}{11} a^3 (4 A b+a B) x^{11/2}+\frac {4}{13} a^2 b (3 A b+2 a B) x^{13/2}+\frac {4}{15} a b^2 (2 A b+3 a B) x^{15/2}+\frac {2}{17} b^3 (A b+4 a B) x^{17/2}+\frac {2}{19} b^4 B x^{19/2}\\ \end {align*}

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Mathematica [A]  time = 0.07, size = 81, normalized size = 0.73 \begin {gather*} \frac {2 \left (\frac {x^{9/2} \left (12155 a^4+39780 a^3 b x+50490 a^2 b^2 x^2+29172 a b^3 x^3+6435 b^4 x^4\right ) (19 A b-9 a B)}{109395}+B x^{9/2} (a+b x)^5\right )}{19 b} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[x^(7/2)*(A + B*x)*(a^2 + 2*a*b*x + b^2*x^2)^2,x]

[Out]

(2*(B*x^(9/2)*(a + b*x)^5 + ((19*A*b - 9*a*B)*x^(9/2)*(12155*a^4 + 39780*a^3*b*x + 50490*a^2*b^2*x^2 + 29172*a
*b^3*x^3 + 6435*b^4*x^4))/109395))/(19*b)

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IntegrateAlgebraic [A]  time = 0.06, size = 125, normalized size = 1.13 \begin {gather*} \frac {2 \left (230945 a^4 A x^{9/2}+188955 a^4 B x^{11/2}+755820 a^3 A b x^{11/2}+639540 a^3 b B x^{13/2}+959310 a^2 A b^2 x^{13/2}+831402 a^2 b^2 B x^{15/2}+554268 a A b^3 x^{15/2}+489060 a b^3 B x^{17/2}+122265 A b^4 x^{17/2}+109395 b^4 B x^{19/2}\right )}{2078505} \end {gather*}

Antiderivative was successfully verified.

[In]

IntegrateAlgebraic[x^(7/2)*(A + B*x)*(a^2 + 2*a*b*x + b^2*x^2)^2,x]

[Out]

(2*(230945*a^4*A*x^(9/2) + 755820*a^3*A*b*x^(11/2) + 188955*a^4*B*x^(11/2) + 959310*a^2*A*b^2*x^(13/2) + 63954
0*a^3*b*B*x^(13/2) + 554268*a*A*b^3*x^(15/2) + 831402*a^2*b^2*B*x^(15/2) + 122265*A*b^4*x^(17/2) + 489060*a*b^
3*B*x^(17/2) + 109395*b^4*B*x^(19/2)))/2078505

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fricas [A]  time = 0.43, size = 104, normalized size = 0.94 \begin {gather*} \frac {2}{2078505} \, {\left (109395 \, B b^{4} x^{9} + 230945 \, A a^{4} x^{4} + 122265 \, {\left (4 \, B a b^{3} + A b^{4}\right )} x^{8} + 277134 \, {\left (3 \, B a^{2} b^{2} + 2 \, A a b^{3}\right )} x^{7} + 319770 \, {\left (2 \, B a^{3} b + 3 \, A a^{2} b^{2}\right )} x^{6} + 188955 \, {\left (B a^{4} + 4 \, A a^{3} b\right )} x^{5}\right )} \sqrt {x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

2/2078505*(109395*B*b^4*x^9 + 230945*A*a^4*x^4 + 122265*(4*B*a*b^3 + A*b^4)*x^8 + 277134*(3*B*a^2*b^2 + 2*A*a*
b^3)*x^7 + 319770*(2*B*a^3*b + 3*A*a^2*b^2)*x^6 + 188955*(B*a^4 + 4*A*a^3*b)*x^5)*sqrt(x)

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giac [A]  time = 0.19, size = 101, normalized size = 0.91 \begin {gather*} \frac {2}{19} \, B b^{4} x^{\frac {19}{2}} + \frac {8}{17} \, B a b^{3} x^{\frac {17}{2}} + \frac {2}{17} \, A b^{4} x^{\frac {17}{2}} + \frac {4}{5} \, B a^{2} b^{2} x^{\frac {15}{2}} + \frac {8}{15} \, A a b^{3} x^{\frac {15}{2}} + \frac {8}{13} \, B a^{3} b x^{\frac {13}{2}} + \frac {12}{13} \, A a^{2} b^{2} x^{\frac {13}{2}} + \frac {2}{11} \, B a^{4} x^{\frac {11}{2}} + \frac {8}{11} \, A a^{3} b x^{\frac {11}{2}} + \frac {2}{9} \, A a^{4} x^{\frac {9}{2}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

2/19*B*b^4*x^(19/2) + 8/17*B*a*b^3*x^(17/2) + 2/17*A*b^4*x^(17/2) + 4/5*B*a^2*b^2*x^(15/2) + 8/15*A*a*b^3*x^(1
5/2) + 8/13*B*a^3*b*x^(13/2) + 12/13*A*a^2*b^2*x^(13/2) + 2/11*B*a^4*x^(11/2) + 8/11*A*a^3*b*x^(11/2) + 2/9*A*
a^4*x^(9/2)

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maple [A]  time = 0.05, size = 100, normalized size = 0.90 \begin {gather*} \frac {2 \left (109395 b^{4} B \,x^{5}+122265 A \,b^{4} x^{4}+489060 x^{4} B a \,b^{3}+554268 A a \,b^{3} x^{3}+831402 B \,a^{2} b^{2} x^{3}+959310 A \,a^{2} b^{2} x^{2}+639540 B \,a^{3} b \,x^{2}+755820 A \,a^{3} b x +188955 B \,a^{4} x +230945 A \,a^{4}\right ) x^{\frac {9}{2}}}{2078505} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^(7/2)*(B*x+A)*(b^2*x^2+2*a*b*x+a^2)^2,x)

[Out]

2/2078505*x^(9/2)*(109395*B*b^4*x^5+122265*A*b^4*x^4+489060*B*a*b^3*x^4+554268*A*a*b^3*x^3+831402*B*a^2*b^2*x^
3+959310*A*a^2*b^2*x^2+639540*B*a^3*b*x^2+755820*A*a^3*b*x+188955*B*a^4*x+230945*A*a^4)

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maxima [A]  time = 0.60, size = 99, normalized size = 0.89 \begin {gather*} \frac {2}{19} \, B b^{4} x^{\frac {19}{2}} + \frac {2}{9} \, A a^{4} x^{\frac {9}{2}} + \frac {2}{17} \, {\left (4 \, B a b^{3} + A b^{4}\right )} x^{\frac {17}{2}} + \frac {4}{15} \, {\left (3 \, B a^{2} b^{2} + 2 \, A a b^{3}\right )} x^{\frac {15}{2}} + \frac {4}{13} \, {\left (2 \, B a^{3} b + 3 \, A a^{2} b^{2}\right )} x^{\frac {13}{2}} + \frac {2}{11} \, {\left (B a^{4} + 4 \, A a^{3} b\right )} x^{\frac {11}{2}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

2/19*B*b^4*x^(19/2) + 2/9*A*a^4*x^(9/2) + 2/17*(4*B*a*b^3 + A*b^4)*x^(17/2) + 4/15*(3*B*a^2*b^2 + 2*A*a*b^3)*x
^(15/2) + 4/13*(2*B*a^3*b + 3*A*a^2*b^2)*x^(13/2) + 2/11*(B*a^4 + 4*A*a^3*b)*x^(11/2)

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mupad [B]  time = 0.05, size = 91, normalized size = 0.82 \begin {gather*} x^{11/2}\,\left (\frac {2\,B\,a^4}{11}+\frac {8\,A\,b\,a^3}{11}\right )+x^{17/2}\,\left (\frac {2\,A\,b^4}{17}+\frac {8\,B\,a\,b^3}{17}\right )+\frac {2\,A\,a^4\,x^{9/2}}{9}+\frac {2\,B\,b^4\,x^{19/2}}{19}+\frac {4\,a^2\,b\,x^{13/2}\,\left (3\,A\,b+2\,B\,a\right )}{13}+\frac {4\,a\,b^2\,x^{15/2}\,\left (2\,A\,b+3\,B\,a\right )}{15} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^(7/2)*(A + B*x)*(a^2 + b^2*x^2 + 2*a*b*x)^2,x)

[Out]

x^(11/2)*((2*B*a^4)/11 + (8*A*a^3*b)/11) + x^(17/2)*((2*A*b^4)/17 + (8*B*a*b^3)/17) + (2*A*a^4*x^(9/2))/9 + (2
*B*b^4*x^(19/2))/19 + (4*a^2*b*x^(13/2)*(3*A*b + 2*B*a))/13 + (4*a*b^2*x^(15/2)*(2*A*b + 3*B*a))/15

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sympy [A]  time = 15.90, size = 148, normalized size = 1.33 \begin {gather*} \frac {2 A a^{4} x^{\frac {9}{2}}}{9} + \frac {8 A a^{3} b x^{\frac {11}{2}}}{11} + \frac {12 A a^{2} b^{2} x^{\frac {13}{2}}}{13} + \frac {8 A a b^{3} x^{\frac {15}{2}}}{15} + \frac {2 A b^{4} x^{\frac {17}{2}}}{17} + \frac {2 B a^{4} x^{\frac {11}{2}}}{11} + \frac {8 B a^{3} b x^{\frac {13}{2}}}{13} + \frac {4 B a^{2} b^{2} x^{\frac {15}{2}}}{5} + \frac {8 B a b^{3} x^{\frac {17}{2}}}{17} + \frac {2 B b^{4} x^{\frac {19}{2}}}{19} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**(7/2)*(B*x+A)*(b**2*x**2+2*a*b*x+a**2)**2,x)

[Out]

2*A*a**4*x**(9/2)/9 + 8*A*a**3*b*x**(11/2)/11 + 12*A*a**2*b**2*x**(13/2)/13 + 8*A*a*b**3*x**(15/2)/15 + 2*A*b*
*4*x**(17/2)/17 + 2*B*a**4*x**(11/2)/11 + 8*B*a**3*b*x**(13/2)/13 + 4*B*a**2*b**2*x**(15/2)/5 + 8*B*a*b**3*x**
(17/2)/17 + 2*B*b**4*x**(19/2)/19

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