3.800 \(\int x^{7/2} (A+B x) (a^2+2 a b x+b^2 x^2)^{5/2} \, dx\)

Optimal. Leaf size=320 \[ \frac{2 b^4 x^{19/2} \sqrt{a^2+2 a b x+b^2 x^2} (5 a B+A b)}{19 (a+b x)}+\frac{10 a b^3 x^{17/2} \sqrt{a^2+2 a b x+b^2 x^2} (2 a B+A b)}{17 (a+b x)}+\frac{4 a^2 b^2 x^{15/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+A b)}{3 (a+b x)}+\frac{10 a^3 b x^{13/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+2 A b)}{13 (a+b x)}+\frac{2 a^4 x^{11/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+5 A b)}{11 (a+b x)}+\frac{2 a^5 A x^{9/2} \sqrt{a^2+2 a b x+b^2 x^2}}{9 (a+b x)}+\frac{2 b^5 B x^{21/2} \sqrt{a^2+2 a b x+b^2 x^2}}{21 (a+b x)} \]

[Out]

(2*a^5*A*x^(9/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(9*(a + b*x)) + (2*a^4*(5*A*b + a*B)*x^(11/2)*Sqrt[a^2 + 2*a*b
*x + b^2*x^2])/(11*(a + b*x)) + (10*a^3*b*(2*A*b + a*B)*x^(13/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(13*(a + b*x))
+ (4*a^2*b^2*(A*b + a*B)*x^(15/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(3*(a + b*x)) + (10*a*b^3*(A*b + 2*a*B)*x^(1
7/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(17*(a + b*x)) + (2*b^4*(A*b + 5*a*B)*x^(19/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^
2])/(19*(a + b*x)) + (2*b^5*B*x^(21/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(21*(a + b*x))

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Rubi [A]  time = 0.13426, antiderivative size = 320, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 31, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.065, Rules used = {770, 76} \[ \frac{2 b^4 x^{19/2} \sqrt{a^2+2 a b x+b^2 x^2} (5 a B+A b)}{19 (a+b x)}+\frac{10 a b^3 x^{17/2} \sqrt{a^2+2 a b x+b^2 x^2} (2 a B+A b)}{17 (a+b x)}+\frac{4 a^2 b^2 x^{15/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+A b)}{3 (a+b x)}+\frac{10 a^3 b x^{13/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+2 A b)}{13 (a+b x)}+\frac{2 a^4 x^{11/2} \sqrt{a^2+2 a b x+b^2 x^2} (a B+5 A b)}{11 (a+b x)}+\frac{2 a^5 A x^{9/2} \sqrt{a^2+2 a b x+b^2 x^2}}{9 (a+b x)}+\frac{2 b^5 B x^{21/2} \sqrt{a^2+2 a b x+b^2 x^2}}{21 (a+b x)} \]

Antiderivative was successfully verified.

[In]

Int[x^(7/2)*(A + B*x)*(a^2 + 2*a*b*x + b^2*x^2)^(5/2),x]

[Out]

(2*a^5*A*x^(9/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(9*(a + b*x)) + (2*a^4*(5*A*b + a*B)*x^(11/2)*Sqrt[a^2 + 2*a*b
*x + b^2*x^2])/(11*(a + b*x)) + (10*a^3*b*(2*A*b + a*B)*x^(13/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(13*(a + b*x))
+ (4*a^2*b^2*(A*b + a*B)*x^(15/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(3*(a + b*x)) + (10*a*b^3*(A*b + 2*a*B)*x^(1
7/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(17*(a + b*x)) + (2*b^4*(A*b + 5*a*B)*x^(19/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^
2])/(19*(a + b*x)) + (2*b^5*B*x^(21/2)*Sqrt[a^2 + 2*a*b*x + b^2*x^2])/(21*(a + b*x))

Rule 770

Int[((d_.) + (e_.)*(x_))^(m_.)*((f_.) + (g_.)*(x_))*((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(p_), x_Symbol] :> Dis
t[(a + b*x + c*x^2)^FracPart[p]/(c^IntPart[p]*(b/2 + c*x)^(2*FracPart[p])), Int[(d + e*x)^m*(f + g*x)*(b/2 + c
*x)^(2*p), x], x] /; FreeQ[{a, b, c, d, e, f, g, m}, x] && EqQ[b^2 - 4*a*c, 0]

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 )^{5/2} \, dx &=\frac{\sqrt{a^2+2 a b x+b^2 x^2} \int x^{7/2} \left (a b+b^2 x\right )^5 (A+B x) \, dx}{b^4 \left (a b+b^2 x\right )}\\ &=\frac{\sqrt{a^2+2 a b x+b^2 x^2} \int \left (a^5 A b^5 x^{7/2}+a^4 b^5 (5 A b+a B) x^{9/2}+5 a^3 b^6 (2 A b+a B) x^{11/2}+10 a^2 b^7 (A b+a B) x^{13/2}+5 a b^8 (A b+2 a B) x^{15/2}+b^9 (A b+5 a B) x^{17/2}+b^{10} B x^{19/2}\right ) \, dx}{b^4 \left (a b+b^2 x\right )}\\ &=\frac{2 a^5 A x^{9/2} \sqrt{a^2+2 a b x+b^2 x^2}}{9 (a+b x)}+\frac{2 a^4 (5 A b+a B) x^{11/2} \sqrt{a^2+2 a b x+b^2 x^2}}{11 (a+b x)}+\frac{10 a^3 b (2 A b+a B) x^{13/2} \sqrt{a^2+2 a b x+b^2 x^2}}{13 (a+b x)}+\frac{4 a^2 b^2 (A b+a B) x^{15/2} \sqrt{a^2+2 a b x+b^2 x^2}}{3 (a+b x)}+\frac{10 a b^3 (A b+2 a B) x^{17/2} \sqrt{a^2+2 a b x+b^2 x^2}}{17 (a+b x)}+\frac{2 b^4 (A b+5 a B) x^{19/2} \sqrt{a^2+2 a b x+b^2 x^2}}{19 (a+b x)}+\frac{2 b^5 B x^{21/2} \sqrt{a^2+2 a b x+b^2 x^2}}{21 (a+b x)}\\ \end{align*}

Mathematica [A]  time = 0.0928271, size = 110, normalized size = 0.34 \[ \frac{2 \sqrt{(a+b x)^2} \left (\frac{x^{9/2} \left (319770 a^3 b^2 x^2+277134 a^2 b^3 x^3+188955 a^4 b x+46189 a^5+122265 a b^4 x^4+21879 b^5 x^5\right ) (7 A b-3 a B)}{138567}+B x^{9/2} (a+b x)^6\right )}{21 b (a+b x)} \]

Antiderivative was successfully verified.

[In]

Integrate[x^(7/2)*(A + B*x)*(a^2 + 2*a*b*x + b^2*x^2)^(5/2),x]

[Out]

(2*Sqrt[(a + b*x)^2]*(B*x^(9/2)*(a + b*x)^6 + ((7*A*b - 3*a*B)*x^(9/2)*(46189*a^5 + 188955*a^4*b*x + 319770*a^
3*b^2*x^2 + 277134*a^2*b^3*x^3 + 122265*a*b^4*x^4 + 21879*b^5*x^5))/138567))/(21*b*(a + b*x))

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Maple [A]  time = 0.007, size = 140, normalized size = 0.4 \begin{align*}{\frac{277134\,B{b}^{5}{x}^{6}+306306\,A{x}^{5}{b}^{5}+1531530\,B{x}^{5}a{b}^{4}+1711710\,A{x}^{4}a{b}^{4}+3423420\,B{x}^{4}{a}^{2}{b}^{3}+3879876\,A{x}^{3}{a}^{2}{b}^{3}+3879876\,B{x}^{3}{a}^{3}{b}^{2}+4476780\,A{x}^{2}{a}^{3}{b}^{2}+2238390\,B{x}^{2}{a}^{4}b+2645370\,A{a}^{4}bx+529074\,B{a}^{5}x+646646\,A{a}^{5}}{2909907\, \left ( bx+a \right ) ^{5}}{x}^{{\frac{9}{2}}} \left ( \left ( bx+a \right ) ^{2} \right ) ^{{\frac{5}{2}}}} \end{align*}

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)^(5/2),x)

[Out]

2/2909907*x^(9/2)*(138567*B*b^5*x^6+153153*A*b^5*x^5+765765*B*a*b^4*x^5+855855*A*a*b^4*x^4+1711710*B*a^2*b^3*x
^4+1939938*A*a^2*b^3*x^3+1939938*B*a^3*b^2*x^3+2238390*A*a^3*b^2*x^2+1119195*B*a^4*b*x^2+1322685*A*a^4*b*x+264
537*B*a^5*x+323323*A*a^5)*((b*x+a)^2)^(5/2)/(b*x+a)^5

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Maxima [A]  time = 1.03036, size = 325, normalized size = 1.02 \begin{align*} \frac{2}{2078505} \,{\left (6435 \,{\left (17 \, b^{5} x^{2} + 19 \, a b^{4} x\right )} x^{\frac{15}{2}} + 32604 \,{\left (15 \, a b^{4} x^{2} + 17 \, a^{2} b^{3} x\right )} x^{\frac{13}{2}} + 63954 \,{\left (13 \, a^{2} b^{3} x^{2} + 15 \, a^{3} b^{2} x\right )} x^{\frac{11}{2}} + 58140 \,{\left (11 \, a^{3} b^{2} x^{2} + 13 \, a^{4} b x\right )} x^{\frac{9}{2}} + 20995 \,{\left (9 \, a^{4} b x^{2} + 11 \, a^{5} x\right )} x^{\frac{7}{2}}\right )} A + \frac{2}{4849845} \,{\left (12155 \,{\left (19 \, b^{5} x^{2} + 21 \, a b^{4} x\right )} x^{\frac{17}{2}} + 60060 \,{\left (17 \, a b^{4} x^{2} + 19 \, a^{2} b^{3} x\right )} x^{\frac{15}{2}} + 114114 \,{\left (15 \, a^{2} b^{3} x^{2} + 17 \, a^{3} b^{2} x\right )} x^{\frac{13}{2}} + 99484 \,{\left (13 \, a^{3} b^{2} x^{2} + 15 \, a^{4} b x\right )} x^{\frac{11}{2}} + 33915 \,{\left (11 \, a^{4} b x^{2} + 13 \, a^{5} x\right )} x^{\frac{9}{2}}\right )} B \end{align*}

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)^(5/2),x, algorithm="maxima")

[Out]

2/2078505*(6435*(17*b^5*x^2 + 19*a*b^4*x)*x^(15/2) + 32604*(15*a*b^4*x^2 + 17*a^2*b^3*x)*x^(13/2) + 63954*(13*
a^2*b^3*x^2 + 15*a^3*b^2*x)*x^(11/2) + 58140*(11*a^3*b^2*x^2 + 13*a^4*b*x)*x^(9/2) + 20995*(9*a^4*b*x^2 + 11*a
^5*x)*x^(7/2))*A + 2/4849845*(12155*(19*b^5*x^2 + 21*a*b^4*x)*x^(17/2) + 60060*(17*a*b^4*x^2 + 19*a^2*b^3*x)*x
^(15/2) + 114114*(15*a^2*b^3*x^2 + 17*a^3*b^2*x)*x^(13/2) + 99484*(13*a^3*b^2*x^2 + 15*a^4*b*x)*x^(11/2) + 339
15*(11*a^4*b*x^2 + 13*a^5*x)*x^(9/2))*B

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Fricas [A]  time = 1.40444, size = 320, normalized size = 1. \begin{align*} \frac{2}{2909907} \,{\left (138567 \, B b^{5} x^{10} + 323323 \, A a^{5} x^{4} + 153153 \,{\left (5 \, B a b^{4} + A b^{5}\right )} x^{9} + 855855 \,{\left (2 \, B a^{2} b^{3} + A a b^{4}\right )} x^{8} + 1939938 \,{\left (B a^{3} b^{2} + A a^{2} b^{3}\right )} x^{7} + 1119195 \,{\left (B a^{4} b + 2 \, A a^{3} b^{2}\right )} x^{6} + 264537 \,{\left (B a^{5} + 5 \, A a^{4} b\right )} x^{5}\right )} \sqrt{x} \end{align*}

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)^(5/2),x, algorithm="fricas")

[Out]

2/2909907*(138567*B*b^5*x^10 + 323323*A*a^5*x^4 + 153153*(5*B*a*b^4 + A*b^5)*x^9 + 855855*(2*B*a^2*b^3 + A*a*b
^4)*x^8 + 1939938*(B*a^3*b^2 + A*a^2*b^3)*x^7 + 1119195*(B*a^4*b + 2*A*a^3*b^2)*x^6 + 264537*(B*a^5 + 5*A*a^4*
b)*x^5)*sqrt(x)

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Sympy [F(-1)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Timed out} \end{align*}

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)**(5/2),x)

[Out]

Timed out

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Giac [A]  time = 1.14719, size = 266, normalized size = 0.83 \begin{align*} \frac{2}{21} \, B b^{5} x^{\frac{21}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{10}{19} \, B a b^{4} x^{\frac{19}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{2}{19} \, A b^{5} x^{\frac{19}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{20}{17} \, B a^{2} b^{3} x^{\frac{17}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{10}{17} \, A a b^{4} x^{\frac{17}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{4}{3} \, B a^{3} b^{2} x^{\frac{15}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{4}{3} \, A a^{2} b^{3} x^{\frac{15}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{10}{13} \, B a^{4} b x^{\frac{13}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{20}{13} \, A a^{3} b^{2} x^{\frac{13}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{2}{11} \, B a^{5} x^{\frac{11}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{10}{11} \, A a^{4} b x^{\frac{11}{2}} \mathrm{sgn}\left (b x + a\right ) + \frac{2}{9} \, A a^{5} x^{\frac{9}{2}} \mathrm{sgn}\left (b x + a\right ) \end{align*}

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)^(5/2),x, algorithm="giac")

[Out]

2/21*B*b^5*x^(21/2)*sgn(b*x + a) + 10/19*B*a*b^4*x^(19/2)*sgn(b*x + a) + 2/19*A*b^5*x^(19/2)*sgn(b*x + a) + 20
/17*B*a^2*b^3*x^(17/2)*sgn(b*x + a) + 10/17*A*a*b^4*x^(17/2)*sgn(b*x + a) + 4/3*B*a^3*b^2*x^(15/2)*sgn(b*x + a
) + 4/3*A*a^2*b^3*x^(15/2)*sgn(b*x + a) + 10/13*B*a^4*b*x^(13/2)*sgn(b*x + a) + 20/13*A*a^3*b^2*x^(13/2)*sgn(b
*x + a) + 2/11*B*a^5*x^(11/2)*sgn(b*x + a) + 10/11*A*a^4*b*x^(11/2)*sgn(b*x + a) + 2/9*A*a^5*x^(9/2)*sgn(b*x +
a)