3.369 \(\int \frac{A+B x}{x^{5/2} (a+b x)^3} \, dx\)

Optimal. Leaf size=147 \[ \frac{7 A b-3 a B}{4 a^2 b x^{3/2} (a+b x)}-\frac{5 (7 A b-3 a B)}{12 a^3 b x^{3/2}}+\frac{5 (7 A b-3 a B)}{4 a^4 \sqrt{x}}+\frac{5 \sqrt{b} (7 A b-3 a B) \tan ^{-1}\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a}}\right )}{4 a^{9/2}}+\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2} \]

[Out]

(-5*(7*A*b - 3*a*B))/(12*a^3*b*x^(3/2)) + (5*(7*A*b - 3*a*B))/(4*a^4*Sqrt[x]) + (A*b - a*B)/(2*a*b*x^(3/2)*(a
+ b*x)^2) + (7*A*b - 3*a*B)/(4*a^2*b*x^(3/2)*(a + b*x)) + (5*Sqrt[b]*(7*A*b - 3*a*B)*ArcTan[(Sqrt[b]*Sqrt[x])/
Sqrt[a]])/(4*a^(9/2))

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Rubi [A]  time = 0.0605477, antiderivative size = 147, normalized size of antiderivative = 1., number of steps used = 6, number of rules used = 4, integrand size = 18, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.222, Rules used = {78, 51, 63, 205} \[ \frac{7 A b-3 a B}{4 a^2 b x^{3/2} (a+b x)}-\frac{5 (7 A b-3 a B)}{12 a^3 b x^{3/2}}+\frac{5 (7 A b-3 a B)}{4 a^4 \sqrt{x}}+\frac{5 \sqrt{b} (7 A b-3 a B) \tan ^{-1}\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a}}\right )}{4 a^{9/2}}+\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2} \]

Antiderivative was successfully verified.

[In]

Int[(A + B*x)/(x^(5/2)*(a + b*x)^3),x]

[Out]

(-5*(7*A*b - 3*a*B))/(12*a^3*b*x^(3/2)) + (5*(7*A*b - 3*a*B))/(4*a^4*Sqrt[x]) + (A*b - a*B)/(2*a*b*x^(3/2)*(a
+ b*x)^2) + (7*A*b - 3*a*B)/(4*a^2*b*x^(3/2)*(a + b*x)) + (5*Sqrt[b]*(7*A*b - 3*a*B)*ArcTan[(Sqrt[b]*Sqrt[x])/
Sqrt[a]])/(4*a^(9/2))

Rule 78

Int[((a_.) + (b_.)*(x_))*((c_.) + (d_.)*(x_))^(n_.)*((e_.) + (f_.)*(x_))^(p_.), x_Symbol] :> -Simp[((b*e - a*f
)*(c + d*x)^(n + 1)*(e + f*x)^(p + 1))/(f*(p + 1)*(c*f - d*e)), x] - Dist[(a*d*f*(n + p + 2) - b*(d*e*(n + 1)
+ c*f*(p + 1)))/(f*(p + 1)*(c*f - d*e)), Int[(c + d*x)^n*(e + f*x)^(p + 1), x], x] /; FreeQ[{a, b, c, d, e, f,
n}, x] && LtQ[p, -1] && ( !LtQ[n, -1] || IntegerQ[p] ||  !(IntegerQ[n] ||  !(EqQ[e, 0] ||  !(EqQ[c, 0] || LtQ
[p, n]))))

Rule 51

Int[((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_), x_Symbol] :> Simp[((a + b*x)^(m + 1)*(c + d*x)^(n + 1
))/((b*c - a*d)*(m + 1)), x] - Dist[(d*(m + n + 2))/((b*c - a*d)*(m + 1)), Int[(a + b*x)^(m + 1)*(c + d*x)^n,
x], x] /; FreeQ[{a, b, c, d, n}, x] && NeQ[b*c - a*d, 0] && LtQ[m, -1] &&  !(LtQ[n, -1] && (EqQ[a, 0] || (NeQ[
c, 0] && LtQ[m - n, 0] && IntegerQ[n]))) && IntLinearQ[a, b, c, d, m, n, x]

Rule 63

Int[((a_.) + (b_.)*(x_))^(m_)*((c_.) + (d_.)*(x_))^(n_), x_Symbol] :> With[{p = Denominator[m]}, Dist[p/b, Sub
st[Int[x^(p*(m + 1) - 1)*(c - (a*d)/b + (d*x^p)/b)^n, x], x, (a + b*x)^(1/p)], x]] /; FreeQ[{a, b, c, d}, x] &
& NeQ[b*c - a*d, 0] && LtQ[-1, m, 0] && LeQ[-1, n, 0] && LeQ[Denominator[n], Denominator[m]] && IntLinearQ[a,
b, c, d, m, n, x]

Rule 205

Int[((a_) + (b_.)*(x_)^2)^(-1), x_Symbol] :> Simp[(Rt[a/b, 2]*ArcTan[x/Rt[a/b, 2]])/a, x] /; FreeQ[{a, b}, x]
&& PosQ[a/b]

Rubi steps

\begin{align*} \int \frac{A+B x}{x^{5/2} (a+b x)^3} \, dx &=\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2}-\frac{\left (-\frac{7 A b}{2}+\frac{3 a B}{2}\right ) \int \frac{1}{x^{5/2} (a+b x)^2} \, dx}{2 a b}\\ &=\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2}+\frac{7 A b-3 a B}{4 a^2 b x^{3/2} (a+b x)}+\frac{(5 (7 A b-3 a B)) \int \frac{1}{x^{5/2} (a+b x)} \, dx}{8 a^2 b}\\ &=-\frac{5 (7 A b-3 a B)}{12 a^3 b x^{3/2}}+\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2}+\frac{7 A b-3 a B}{4 a^2 b x^{3/2} (a+b x)}-\frac{(5 (7 A b-3 a B)) \int \frac{1}{x^{3/2} (a+b x)} \, dx}{8 a^3}\\ &=-\frac{5 (7 A b-3 a B)}{12 a^3 b x^{3/2}}+\frac{5 (7 A b-3 a B)}{4 a^4 \sqrt{x}}+\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2}+\frac{7 A b-3 a B}{4 a^2 b x^{3/2} (a+b x)}+\frac{(5 b (7 A b-3 a B)) \int \frac{1}{\sqrt{x} (a+b x)} \, dx}{8 a^4}\\ &=-\frac{5 (7 A b-3 a B)}{12 a^3 b x^{3/2}}+\frac{5 (7 A b-3 a B)}{4 a^4 \sqrt{x}}+\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2}+\frac{7 A b-3 a B}{4 a^2 b x^{3/2} (a+b x)}+\frac{(5 b (7 A b-3 a B)) \operatorname{Subst}\left (\int \frac{1}{a+b x^2} \, dx,x,\sqrt{x}\right )}{4 a^4}\\ &=-\frac{5 (7 A b-3 a B)}{12 a^3 b x^{3/2}}+\frac{5 (7 A b-3 a B)}{4 a^4 \sqrt{x}}+\frac{A b-a B}{2 a b x^{3/2} (a+b x)^2}+\frac{7 A b-3 a B}{4 a^2 b x^{3/2} (a+b x)}+\frac{5 \sqrt{b} (7 A b-3 a B) \tan ^{-1}\left (\frac{\sqrt{b} \sqrt{x}}{\sqrt{a}}\right )}{4 a^{9/2}}\\ \end{align*}

Mathematica [C]  time = 0.0260262, size = 61, normalized size = 0.41 \[ \frac{\frac{3 a^2 (A b-a B)}{(a+b x)^2}+(3 a B-7 A b) \, _2F_1\left (-\frac{3}{2},2;-\frac{1}{2};-\frac{b x}{a}\right )}{6 a^3 b x^{3/2}} \]

Antiderivative was successfully verified.

[In]

Integrate[(A + B*x)/(x^(5/2)*(a + b*x)^3),x]

[Out]

((3*a^2*(A*b - a*B))/(a + b*x)^2 + (-7*A*b + 3*a*B)*Hypergeometric2F1[-3/2, 2, -1/2, -((b*x)/a)])/(6*a^3*b*x^(
3/2))

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Maple [A]  time = 0.017, size = 152, normalized size = 1. \begin{align*} -{\frac{2\,A}{3\,{a}^{3}}{x}^{-{\frac{3}{2}}}}+6\,{\frac{Ab}{{a}^{4}\sqrt{x}}}-2\,{\frac{B}{{a}^{3}\sqrt{x}}}+{\frac{11\,{b}^{3}A}{4\,{a}^{4} \left ( bx+a \right ) ^{2}}{x}^{{\frac{3}{2}}}}-{\frac{7\,{b}^{2}B}{4\,{a}^{3} \left ( bx+a \right ) ^{2}}{x}^{{\frac{3}{2}}}}+{\frac{13\,A{b}^{2}}{4\,{a}^{3} \left ( bx+a \right ) ^{2}}\sqrt{x}}-{\frac{9\,Bb}{4\,{a}^{2} \left ( bx+a \right ) ^{2}}\sqrt{x}}+{\frac{35\,A{b}^{2}}{4\,{a}^{4}}\arctan \left ({b\sqrt{x}{\frac{1}{\sqrt{ab}}}} \right ){\frac{1}{\sqrt{ab}}}}-{\frac{15\,Bb}{4\,{a}^{3}}\arctan \left ({b\sqrt{x}{\frac{1}{\sqrt{ab}}}} \right ){\frac{1}{\sqrt{ab}}}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((B*x+A)/x^(5/2)/(b*x+a)^3,x)

[Out]

-2/3*A/a^3/x^(3/2)+6/a^4/x^(1/2)*A*b-2/a^3/x^(1/2)*B+11/4/a^4*b^3/(b*x+a)^2*x^(3/2)*A-7/4/a^3*b^2/(b*x+a)^2*x^
(3/2)*B+13/4/a^3*b^2/(b*x+a)^2*A*x^(1/2)-9/4/a^2*b/(b*x+a)^2*B*x^(1/2)+35/4/a^4*b^2/(a*b)^(1/2)*arctan(b*x^(1/
2)/(a*b)^(1/2))*A-15/4/a^3*b/(a*b)^(1/2)*arctan(b*x^(1/2)/(a*b)^(1/2))*B

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Maxima [F(-2)]  time = 0., size = 0, normalized size = 0. \begin{align*} \text{Exception raised: ValueError} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((B*x+A)/x^(5/2)/(b*x+a)^3,x, algorithm="maxima")

[Out]

Exception raised: ValueError

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Fricas [A]  time = 2.51183, size = 821, normalized size = 5.59 \begin{align*} \left [-\frac{15 \,{\left ({\left (3 \, B a b^{2} - 7 \, A b^{3}\right )} x^{4} + 2 \,{\left (3 \, B a^{2} b - 7 \, A a b^{2}\right )} x^{3} +{\left (3 \, B a^{3} - 7 \, A a^{2} b\right )} x^{2}\right )} \sqrt{-\frac{b}{a}} \log \left (\frac{b x + 2 \, a \sqrt{x} \sqrt{-\frac{b}{a}} - a}{b x + a}\right ) + 2 \,{\left (8 \, A a^{3} + 15 \,{\left (3 \, B a b^{2} - 7 \, A b^{3}\right )} x^{3} + 25 \,{\left (3 \, B a^{2} b - 7 \, A a b^{2}\right )} x^{2} + 8 \,{\left (3 \, B a^{3} - 7 \, A a^{2} b\right )} x\right )} \sqrt{x}}{24 \,{\left (a^{4} b^{2} x^{4} + 2 \, a^{5} b x^{3} + a^{6} x^{2}\right )}}, \frac{15 \,{\left ({\left (3 \, B a b^{2} - 7 \, A b^{3}\right )} x^{4} + 2 \,{\left (3 \, B a^{2} b - 7 \, A a b^{2}\right )} x^{3} +{\left (3 \, B a^{3} - 7 \, A a^{2} b\right )} x^{2}\right )} \sqrt{\frac{b}{a}} \arctan \left (\frac{a \sqrt{\frac{b}{a}}}{b \sqrt{x}}\right ) -{\left (8 \, A a^{3} + 15 \,{\left (3 \, B a b^{2} - 7 \, A b^{3}\right )} x^{3} + 25 \,{\left (3 \, B a^{2} b - 7 \, A a b^{2}\right )} x^{2} + 8 \,{\left (3 \, B a^{3} - 7 \, A a^{2} b\right )} x\right )} \sqrt{x}}{12 \,{\left (a^{4} b^{2} x^{4} + 2 \, a^{5} b x^{3} + a^{6} x^{2}\right )}}\right ] \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((B*x+A)/x^(5/2)/(b*x+a)^3,x, algorithm="fricas")

[Out]

[-1/24*(15*((3*B*a*b^2 - 7*A*b^3)*x^4 + 2*(3*B*a^2*b - 7*A*a*b^2)*x^3 + (3*B*a^3 - 7*A*a^2*b)*x^2)*sqrt(-b/a)*
log((b*x + 2*a*sqrt(x)*sqrt(-b/a) - a)/(b*x + a)) + 2*(8*A*a^3 + 15*(3*B*a*b^2 - 7*A*b^3)*x^3 + 25*(3*B*a^2*b
- 7*A*a*b^2)*x^2 + 8*(3*B*a^3 - 7*A*a^2*b)*x)*sqrt(x))/(a^4*b^2*x^4 + 2*a^5*b*x^3 + a^6*x^2), 1/12*(15*((3*B*a
*b^2 - 7*A*b^3)*x^4 + 2*(3*B*a^2*b - 7*A*a*b^2)*x^3 + (3*B*a^3 - 7*A*a^2*b)*x^2)*sqrt(b/a)*arctan(a*sqrt(b/a)/
(b*sqrt(x))) - (8*A*a^3 + 15*(3*B*a*b^2 - 7*A*b^3)*x^3 + 25*(3*B*a^2*b - 7*A*a*b^2)*x^2 + 8*(3*B*a^3 - 7*A*a^2
*b)*x)*sqrt(x))/(a^4*b^2*x^4 + 2*a^5*b*x^3 + a^6*x^2)]

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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((B*x+A)/x**(5/2)/(b*x+a)**3,x)

[Out]

Timed out

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Giac [A]  time = 1.21525, size = 146, normalized size = 0.99 \begin{align*} -\frac{5 \,{\left (3 \, B a b - 7 \, A b^{2}\right )} \arctan \left (\frac{b \sqrt{x}}{\sqrt{a b}}\right )}{4 \, \sqrt{a b} a^{4}} - \frac{2 \,{\left (3 \, B a x - 9 \, A b x + A a\right )}}{3 \, a^{4} x^{\frac{3}{2}}} - \frac{7 \, B a b^{2} x^{\frac{3}{2}} - 11 \, A b^{3} x^{\frac{3}{2}} + 9 \, B a^{2} b \sqrt{x} - 13 \, A a b^{2} \sqrt{x}}{4 \,{\left (b x + a\right )}^{2} a^{4}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((B*x+A)/x^(5/2)/(b*x+a)^3,x, algorithm="giac")

[Out]

-5/4*(3*B*a*b - 7*A*b^2)*arctan(b*sqrt(x)/sqrt(a*b))/(sqrt(a*b)*a^4) - 2/3*(3*B*a*x - 9*A*b*x + A*a)/(a^4*x^(3
/2)) - 1/4*(7*B*a*b^2*x^(3/2) - 11*A*b^3*x^(3/2) + 9*B*a^2*b*sqrt(x) - 13*A*a*b^2*sqrt(x))/((b*x + a)^2*a^4)