\(\int x (c+d x)^2 (a+b x^2)^p \, dx\) [14]

Optimal result

Integrand size = 18, antiderivative size = 120 \[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx=\frac {(c+d x)^2 \left (a+b x^2\right )^{1+p}}{2 b (1+p)}-\frac {d^2 \left (a+b x^2\right )^{2+p}}{2 b^2 (1+p) (2+p)}-\frac {a c d x \left (a+b x^2\right )^p \left (1+\frac {b x^2}{a}\right )^{-p} \operatorname {Hypergeometric2F1}\left (\frac {1}{2},-1-p,\frac {3}{2},-\frac {b x^2}{a}\right )}{b (1+p)} \] Output:

1/2*(d*x+c)^2*(b*x^2+a)^(p+1)/b/(p+1)-1/2*d^2*(b*x^2+a)^(2+p)/b^2/(p+1)/(2 
+p)-a*c*d*x*(b*x^2+a)^p*hypergeom([1/2, -1-p],[3/2],-b*x^2/a)/b/(p+1)/((1+ 
b*x^2/a)^p)
 

Mathematica [A] (verified)

Time = 0.15 (sec) , antiderivative size = 184, normalized size of antiderivative = 1.53 \[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx=\frac {\left (a+b x^2\right )^p \left (1+\frac {b x^2}{a}\right )^{-p} \left (3 b^2 x^2 \left (1+\frac {b x^2}{a}\right )^p \left (c^2 (2+p)+d^2 (1+p) x^2\right )-3 a^2 d^2 \left (-1+\left (1+\frac {b x^2}{a}\right )^p\right )+3 a b \left (d^2 p x^2 \left (1+\frac {b x^2}{a}\right )^p+c^2 (2+p) \left (-1+\left (1+\frac {b x^2}{a}\right )^p\right )\right )+4 b^2 c d \left (2+3 p+p^2\right ) x^3 \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-p,\frac {5}{2},-\frac {b x^2}{a}\right )\right )}{6 b^2 (1+p) (2+p)} \] Input:

Integrate[x*(c + d*x)^2*(a + b*x^2)^p,x]
 

Output:

((a + b*x^2)^p*(3*b^2*x^2*(1 + (b*x^2)/a)^p*(c^2*(2 + p) + d^2*(1 + p)*x^2 
) - 3*a^2*d^2*(-1 + (1 + (b*x^2)/a)^p) + 3*a*b*(d^2*p*x^2*(1 + (b*x^2)/a)^ 
p + c^2*(2 + p)*(-1 + (1 + (b*x^2)/a)^p)) + 4*b^2*c*d*(2 + 3*p + p^2)*x^3* 
Hypergeometric2F1[3/2, -p, 5/2, -((b*x^2)/a)]))/(6*b^2*(1 + p)*(2 + p)*(1 
+ (b*x^2)/a)^p)
 

Rubi [A] (verified)

Time = 0.45 (sec) , antiderivative size = 112, normalized size of antiderivative = 0.93, number of steps used = 8, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.389, Rules used = {543, 27, 279, 278, 353, 53, 2009}

Below are the steps used by Rubi to obtain the solution. The rule number used for the transformation is given above next to the arrow. The rules definitions used are listed below.

\(\displaystyle \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx\)

\(\Big \downarrow \) 543

\(\displaystyle \int x \left (b x^2+a\right )^p \left (c^2+d^2 x^2\right )dx+\int 2 c d x^2 \left (b x^2+a\right )^pdx\)

\(\Big \downarrow \) 27

\(\displaystyle \int x \left (b x^2+a\right )^p \left (c^2+d^2 x^2\right )dx+2 c d \int x^2 \left (b x^2+a\right )^pdx\)

\(\Big \downarrow \) 279

\(\displaystyle \int x \left (b x^2+a\right )^p \left (c^2+d^2 x^2\right )dx+2 c d \left (a+b x^2\right )^p \left (\frac {b x^2}{a}+1\right )^{-p} \int x^2 \left (\frac {b x^2}{a}+1\right )^pdx\)

\(\Big \downarrow \) 278

\(\displaystyle \int x \left (b x^2+a\right )^p \left (c^2+d^2 x^2\right )dx+\frac {2}{3} c d x^3 \left (a+b x^2\right )^p \left (\frac {b x^2}{a}+1\right )^{-p} \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-p,\frac {5}{2},-\frac {b x^2}{a}\right )\)

\(\Big \downarrow \) 353

\(\displaystyle \frac {1}{2} \int \left (b x^2+a\right )^p \left (c^2+d^2 x^2\right )dx^2+\frac {2}{3} c d x^3 \left (a+b x^2\right )^p \left (\frac {b x^2}{a}+1\right )^{-p} \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-p,\frac {5}{2},-\frac {b x^2}{a}\right )\)

\(\Big \downarrow \) 53

\(\displaystyle \frac {1}{2} \int \left (\frac {\left (b c^2-a d^2\right ) \left (b x^2+a\right )^p}{b}+\frac {d^2 \left (b x^2+a\right )^{p+1}}{b}\right )dx^2+\frac {2}{3} c d x^3 \left (a+b x^2\right )^p \left (\frac {b x^2}{a}+1\right )^{-p} \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-p,\frac {5}{2},-\frac {b x^2}{a}\right )\)

\(\Big \downarrow \) 2009

\(\displaystyle \frac {1}{2} \left (\frac {\left (b c^2-a d^2\right ) \left (a+b x^2\right )^{p+1}}{b^2 (p+1)}+\frac {d^2 \left (a+b x^2\right )^{p+2}}{b^2 (p+2)}\right )+\frac {2}{3} c d x^3 \left (a+b x^2\right )^p \left (\frac {b x^2}{a}+1\right )^{-p} \operatorname {Hypergeometric2F1}\left (\frac {3}{2},-p,\frac {5}{2},-\frac {b x^2}{a}\right )\)

Input:

Int[x*(c + d*x)^2*(a + b*x^2)^p,x]
 

Output:

(((b*c^2 - a*d^2)*(a + b*x^2)^(1 + p))/(b^2*(1 + p)) + (d^2*(a + b*x^2)^(2 
 + p))/(b^2*(2 + p)))/2 + (2*c*d*x^3*(a + b*x^2)^p*Hypergeometric2F1[3/2, 
-p, 5/2, -((b*x^2)/a)])/(3*(1 + (b*x^2)/a)^p)
 

Defintions of rubi rules used

rule 27

Int[(a_)*(Fx_), x_Symbol] :> Simp[a   Int[Fx, x], x] /; FreeQ[a, x] &&  !Ma 
tchQ[Fx, (b_)*(Gx_) /; FreeQ[b, x]]
 

rule 53

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] && 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])
 

rule 278

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^2)^(p_), x_Symbol] :> Simp[a^p*(( 
c*x)^(m + 1)/(c*(m + 1)))*Hypergeometric2F1[-p, (m + 1)/2, (m + 1)/2 + 1, ( 
-b)*(x^2/a)], x] /; FreeQ[{a, b, c, m, p}, x] &&  !IGtQ[p, 0] && (ILtQ[p, 0 
] || GtQ[a, 0])
 

rule 279

Int[((c_.)*(x_))^(m_.)*((a_) + (b_.)*(x_)^2)^(p_), x_Symbol] :> Simp[a^IntP 
art[p]*((a + b*x^2)^FracPart[p]/(1 + b*(x^2/a))^FracPart[p])   Int[(c*x)^m* 
(1 + b*(x^2/a))^p, x], x] /; FreeQ[{a, b, c, m, p}, x] &&  !IGtQ[p, 0] && 
!(ILtQ[p, 0] || GtQ[a, 0])
 

rule 353

Int[(x_)*((a_) + (b_.)*(x_)^2)^(p_.)*((c_) + (d_.)*(x_)^2)^(q_.), x_Symbol] 
 :> Simp[1/2   Subst[Int[(a + b*x)^p*(c + d*x)^q, x], x, x^2], x] /; FreeQ[ 
{a, b, c, d, p, q}, x] && NeQ[b*c - a*d, 0]
 

rule 543

Int[(x_)^(m_.)*((c_) + (d_.)*(x_))^(n_)*((a_) + (b_.)*(x_)^2)^(p_), x_Symbo 
l] :> Module[{k}, Int[x^m*Sum[Binomial[n, 2*k]*c^(n - 2*k)*d^(2*k)*x^(2*k), 
 {k, 0, n/2}]*(a + b*x^2)^p, x] + Int[x^(m + 1)*Sum[Binomial[n, 2*k + 1]*c^ 
(n - 2*k - 1)*d^(2*k + 1)*x^(2*k), {k, 0, (n - 1)/2}]*(a + b*x^2)^p, x]] /; 
 FreeQ[{a, b, c, d, p}, x] && IGtQ[n, 1] && IntegerQ[m] &&  !IntegerQ[2*p] 
&&  !(EqQ[m, 1] && EqQ[b*c^2 + a*d^2, 0])
 

rule 2009

Int[u_, x_Symbol] :> Simp[IntSum[u, x], x] /; SumQ[u]
 

Maple [F]

\[\int x \left (d x +c \right )^{2} \left (b \,x^{2}+a \right )^{p}d x\]

Input:

int(x*(d*x+c)^2*(b*x^2+a)^p,x)
 

Output:

int(x*(d*x+c)^2*(b*x^2+a)^p,x)
 

Fricas [F]

\[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx=\int { {\left (d x + c\right )}^{2} {\left (b x^{2} + a\right )}^{p} x \,d x } \] Input:

integrate(x*(d*x+c)^2*(b*x^2+a)^p,x, algorithm="fricas")
 

Output:

integral((d^2*x^3 + 2*c*d*x^2 + c^2*x)*(b*x^2 + a)^p, x)
 

Sympy [A] (verification not implemented)

Time = 4.73 (sec) , antiderivative size = 408, normalized size of antiderivative = 3.40 \[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx=\frac {2 a^{p} c d x^{3} {{}_{2}F_{1}\left (\begin {matrix} \frac {3}{2}, - p \\ \frac {5}{2} \end {matrix}\middle | {\frac {b x^{2} e^{i \pi }}{a}} \right )}}{3} + c^{2} \left (\begin {cases} \frac {a^{p} x^{2}}{2} & \text {for}\: b = 0 \\\frac {\begin {cases} \frac {\left (a + b x^{2}\right )^{p + 1}}{p + 1} & \text {for}\: p \neq -1 \\\log {\left (a + b x^{2} \right )} & \text {otherwise} \end {cases}}{2 b} & \text {otherwise} \end {cases}\right ) + d^{2} \left (\begin {cases} \frac {a^{p} x^{4}}{4} & \text {for}\: b = 0 \\\frac {a \log {\left (x - \sqrt {- \frac {a}{b}} \right )}}{2 a b^{2} + 2 b^{3} x^{2}} + \frac {a \log {\left (x + \sqrt {- \frac {a}{b}} \right )}}{2 a b^{2} + 2 b^{3} x^{2}} + \frac {a}{2 a b^{2} + 2 b^{3} x^{2}} + \frac {b x^{2} \log {\left (x - \sqrt {- \frac {a}{b}} \right )}}{2 a b^{2} + 2 b^{3} x^{2}} + \frac {b x^{2} \log {\left (x + \sqrt {- \frac {a}{b}} \right )}}{2 a b^{2} + 2 b^{3} x^{2}} & \text {for}\: p = -2 \\- \frac {a \log {\left (x - \sqrt {- \frac {a}{b}} \right )}}{2 b^{2}} - \frac {a \log {\left (x + \sqrt {- \frac {a}{b}} \right )}}{2 b^{2}} + \frac {x^{2}}{2 b} & \text {for}\: p = -1 \\- \frac {a^{2} \left (a + b x^{2}\right )^{p}}{2 b^{2} p^{2} + 6 b^{2} p + 4 b^{2}} + \frac {a b p x^{2} \left (a + b x^{2}\right )^{p}}{2 b^{2} p^{2} + 6 b^{2} p + 4 b^{2}} + \frac {b^{2} p x^{4} \left (a + b x^{2}\right )^{p}}{2 b^{2} p^{2} + 6 b^{2} p + 4 b^{2}} + \frac {b^{2} x^{4} \left (a + b x^{2}\right )^{p}}{2 b^{2} p^{2} + 6 b^{2} p + 4 b^{2}} & \text {otherwise} \end {cases}\right ) \] Input:

integrate(x*(d*x+c)**2*(b*x**2+a)**p,x)
 

Output:

2*a**p*c*d*x**3*hyper((3/2, -p), (5/2,), b*x**2*exp_polar(I*pi)/a)/3 + c** 
2*Piecewise((a**p*x**2/2, Eq(b, 0)), (Piecewise(((a + b*x**2)**(p + 1)/(p 
+ 1), Ne(p, -1)), (log(a + b*x**2), True))/(2*b), True)) + d**2*Piecewise( 
(a**p*x**4/4, Eq(b, 0)), (a*log(x - sqrt(-a/b))/(2*a*b**2 + 2*b**3*x**2) + 
 a*log(x + sqrt(-a/b))/(2*a*b**2 + 2*b**3*x**2) + a/(2*a*b**2 + 2*b**3*x** 
2) + b*x**2*log(x - sqrt(-a/b))/(2*a*b**2 + 2*b**3*x**2) + b*x**2*log(x + 
sqrt(-a/b))/(2*a*b**2 + 2*b**3*x**2), Eq(p, -2)), (-a*log(x - sqrt(-a/b))/ 
(2*b**2) - a*log(x + sqrt(-a/b))/(2*b**2) + x**2/(2*b), Eq(p, -1)), (-a**2 
*(a + b*x**2)**p/(2*b**2*p**2 + 6*b**2*p + 4*b**2) + a*b*p*x**2*(a + b*x** 
2)**p/(2*b**2*p**2 + 6*b**2*p + 4*b**2) + b**2*p*x**4*(a + b*x**2)**p/(2*b 
**2*p**2 + 6*b**2*p + 4*b**2) + b**2*x**4*(a + b*x**2)**p/(2*b**2*p**2 + 6 
*b**2*p + 4*b**2), True))
 

Maxima [F]

\[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx=\int { {\left (d x + c\right )}^{2} {\left (b x^{2} + a\right )}^{p} x \,d x } \] Input:

integrate(x*(d*x+c)^2*(b*x^2+a)^p,x, algorithm="maxima")
 

Output:

1/2*(b*x^2 + a)^(p + 1)*c^2/(b*(p + 1)) + integrate((d^2*x^3 + 2*c*d*x^2)* 
(b*x^2 + a)^p, x)
 

Giac [F]

\[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx=\int { {\left (d x + c\right )}^{2} {\left (b x^{2} + a\right )}^{p} x \,d x } \] Input:

integrate(x*(d*x+c)^2*(b*x^2+a)^p,x, algorithm="giac")
 

Output:

integrate((d*x + c)^2*(b*x^2 + a)^p*x, x)
 

Mupad [F(-1)]

Timed out. \[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx=\int x\,{\left (b\,x^2+a\right )}^p\,{\left (c+d\,x\right )}^2 \,d x \] Input:

int(x*(a + b*x^2)^p*(c + d*x)^2,x)
 

Output:

int(x*(a + b*x^2)^p*(c + d*x)^2, x)
 

Reduce [F]

\[ \int x (c+d x)^2 \left (a+b x^2\right )^p \, dx =\text {Too large to display} \] Input:

int(x*(d*x+c)^2*(b*x^2+a)^p,x)
 

Output:

( - 4*(a + b*x**2)**p*a**2*d**2*p**2 - 8*(a + b*x**2)**p*a**2*d**2*p - 3*( 
a + b*x**2)**p*a**2*d**2 + 4*(a + b*x**2)**p*a*b*c**2*p**3 + 16*(a + b*x** 
2)**p*a*b*c**2*p**2 + 19*(a + b*x**2)**p*a*b*c**2*p + 6*(a + b*x**2)**p*a* 
b*c**2 + 8*(a + b*x**2)**p*a*b*c*d*p**3*x + 24*(a + b*x**2)**p*a*b*c*d*p** 
2*x + 16*(a + b*x**2)**p*a*b*c*d*p*x + 4*(a + b*x**2)**p*a*b*d**2*p**3*x** 
2 + 8*(a + b*x**2)**p*a*b*d**2*p**2*x**2 + 3*(a + b*x**2)**p*a*b*d**2*p*x* 
*2 + 4*(a + b*x**2)**p*b**2*c**2*p**3*x**2 + 16*(a + b*x**2)**p*b**2*c**2* 
p**2*x**2 + 19*(a + b*x**2)**p*b**2*c**2*p*x**2 + 6*(a + b*x**2)**p*b**2*c 
**2*x**2 + 8*(a + b*x**2)**p*b**2*c*d*p**3*x**3 + 28*(a + b*x**2)**p*b**2* 
c*d*p**2*x**3 + 28*(a + b*x**2)**p*b**2*c*d*p*x**3 + 8*(a + b*x**2)**p*b** 
2*c*d*x**3 + 4*(a + b*x**2)**p*b**2*d**2*p**3*x**4 + 12*(a + b*x**2)**p*b* 
*2*d**2*p**2*x**4 + 11*(a + b*x**2)**p*b**2*d**2*p*x**4 + 3*(a + b*x**2)** 
p*b**2*d**2*x**4 - 32*int((a + b*x**2)**p/(4*a*p**2 + 8*a*p + 3*a + 4*b*p* 
*2*x**2 + 8*b*p*x**2 + 3*b*x**2),x)*a**2*b*c*d*p**5 - 160*int((a + b*x**2) 
**p/(4*a*p**2 + 8*a*p + 3*a + 4*b*p**2*x**2 + 8*b*p*x**2 + 3*b*x**2),x)*a* 
*2*b*c*d*p**4 - 280*int((a + b*x**2)**p/(4*a*p**2 + 8*a*p + 3*a + 4*b*p**2 
*x**2 + 8*b*p*x**2 + 3*b*x**2),x)*a**2*b*c*d*p**3 - 200*int((a + b*x**2)** 
p/(4*a*p**2 + 8*a*p + 3*a + 4*b*p**2*x**2 + 8*b*p*x**2 + 3*b*x**2),x)*a**2 
*b*c*d*p**2 - 48*int((a + b*x**2)**p/(4*a*p**2 + 8*a*p + 3*a + 4*b*p**2*x* 
*2 + 8*b*p*x**2 + 3*b*x**2),x)*a**2*b*c*d*p)/(2*b**2*(4*p**4 + 20*p**3 ...