3.4.92 \(\int \frac {x^3}{\sqrt [3]{a+b x}} \, dx\) [392]

Optimal. Leaf size=72 \[ -\frac {3 a^3 (a+b x)^{2/3}}{2 b^4}+\frac {9 a^2 (a+b x)^{5/3}}{5 b^4}-\frac {9 a (a+b x)^{8/3}}{8 b^4}+\frac {3 (a+b x)^{11/3}}{11 b^4} \]

[Out]

-3/2*a^3*(b*x+a)^(2/3)/b^4+9/5*a^2*(b*x+a)^(5/3)/b^4-9/8*a*(b*x+a)^(8/3)/b^4+3/11*(b*x+a)^(11/3)/b^4

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Rubi [A]
time = 0.01, antiderivative size = 72, normalized size of antiderivative = 1.00, number of steps used = 2, number of rules used = 1, integrand size = 13, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.077, Rules used = {45} \begin {gather*} -\frac {3 a^3 (a+b x)^{2/3}}{2 b^4}+\frac {9 a^2 (a+b x)^{5/3}}{5 b^4}+\frac {3 (a+b x)^{11/3}}{11 b^4}-\frac {9 a (a+b x)^{8/3}}{8 b^4} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[x^3/(a + b*x)^(1/3),x]

[Out]

(-3*a^3*(a + b*x)^(2/3))/(2*b^4) + (9*a^2*(a + b*x)^(5/3))/(5*b^4) - (9*a*(a + b*x)^(8/3))/(8*b^4) + (3*(a + b
*x)^(11/3))/(11*b^4)

Rule 45

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 {x^3}{\sqrt [3]{a+b x}} \, dx &=\int \left (-\frac {a^3}{b^3 \sqrt [3]{a+b x}}+\frac {3 a^2 (a+b x)^{2/3}}{b^3}-\frac {3 a (a+b x)^{5/3}}{b^3}+\frac {(a+b x)^{8/3}}{b^3}\right ) \, dx\\ &=-\frac {3 a^3 (a+b x)^{2/3}}{2 b^4}+\frac {9 a^2 (a+b x)^{5/3}}{5 b^4}-\frac {9 a (a+b x)^{8/3}}{8 b^4}+\frac {3 (a+b x)^{11/3}}{11 b^4}\\ \end {align*}

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Mathematica [A]
time = 0.02, size = 46, normalized size = 0.64 \begin {gather*} \frac {3 (a+b x)^{2/3} \left (-81 a^3+54 a^2 b x-45 a b^2 x^2+40 b^3 x^3\right )}{440 b^4} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[x^3/(a + b*x)^(1/3),x]

[Out]

(3*(a + b*x)^(2/3)*(-81*a^3 + 54*a^2*b*x - 45*a*b^2*x^2 + 40*b^3*x^3))/(440*b^4)

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Mathics [B] Leaf count is larger than twice the leaf count of optimal. \(323\) vs. \(2(72)=144\).
time = 15.34, size = 303, normalized size = 4.21 \begin {gather*} \frac {3 a^{\frac {2}{3}} \left (81 a^9 \left (1-\left (\frac {a+b x}{a}\right )^{\frac {2}{3}}\right )+54 a^8 b x \left (9-8 \left (\frac {a+b x}{a}\right )^{\frac {2}{3}}\right )+9 a^7 b^2 x^2 \left (135-104 \left (\frac {a+b x}{a}\right )^{\frac {2}{3}}\right )+20 a^6 b^3 x^3 \left (81-52 \left (\frac {a+b x}{a}\right )^{\frac {2}{3}}\right )+15 a b^4 x^4 \left (81 a^4+13 b^4 x^4 \left (\frac {a+b x}{a}\right )^{\frac {2}{3}}\right )-570 a^5 b^4 x^4 \left (\frac {a+b x}{a}\right )^{\frac {2}{3}}+8 a^2 b^5 x^5 \left (3 a^2+46 a b x+48 b^2 x^2\right ) \left (\frac {a+b x}{a}\right )^{\frac {2}{3}}+486 a^4 b^5 x^5+81 a^3 b^6 x^6+40 b^9 x^9 \left (\frac {a+b x}{a}\right )^{\frac {2}{3}}\right )}{440 b^4 \left (a^6+6 a^5 b x+15 a^4 b^2 x^2+20 a^3 b^3 x^3+15 a^2 b^4 x^4+6 a b^5 x^5+b^6 x^6\right )} \end {gather*}

Warning: Unable to verify antiderivative.

[In]

mathics('Integrate[x^3/(a + b*x)^(1/3),x]')

[Out]

3 a ^ (2 / 3) (81 a ^ 9 (1 - ((a + b x) / a) ^ (2 / 3)) + 54 a ^ 8 b x (9 - 8 ((a + b x) / a) ^ (2 / 3)) + 9 a
^ 7 b ^ 2 x ^ 2 (135 - 104 ((a + b x) / a) ^ (2 / 3)) + 20 a ^ 6 b ^ 3 x ^ 3 (81 - 52 ((a + b x) / a) ^ (2 /
3)) + 15 a b ^ 4 x ^ 4 (81 a ^ 4 + 13 b ^ 4 x ^ 4 ((a + b x) / a) ^ (2 / 3)) - 570 a ^ 5 b ^ 4 x ^ 4 ((a + b x
) / a) ^ (2 / 3) + 8 a ^ 2 b ^ 5 x ^ 5 (3 a ^ 2 + 46 a b x + 48 b ^ 2 x ^ 2) ((a + b x) / a) ^ (2 / 3) + 486 a
^ 4 b ^ 5 x ^ 5 + 81 a ^ 3 b ^ 6 x ^ 6 + 40 b ^ 9 x ^ 9 ((a + b x) / a) ^ (2 / 3)) / (440 b ^ 4 (a ^ 6 + 6 a
^ 5 b x + 15 a ^ 4 b ^ 2 x ^ 2 + 20 a ^ 3 b ^ 3 x ^ 3 + 15 a ^ 2 b ^ 4 x ^ 4 + 6 a b ^ 5 x ^ 5 + b ^ 6 x ^ 6))

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Maple [A]
time = 0.11, size = 50, normalized size = 0.69

method	result	size
gosper	\(-\frac {3 \left (b x +a \right )^{\frac {2}{3}} \left (-40 b^{3} x^{3}+45 a \,b^{2} x^{2}-54 a^{2} b x +81 a^{3}\right )}{440 b^{4}}\)	\(43\)
trager	\(-\frac {3 \left (b x +a \right )^{\frac {2}{3}} \left (-40 b^{3} x^{3}+45 a \,b^{2} x^{2}-54 a^{2} b x +81 a^{3}\right )}{440 b^{4}}\)	\(43\)
risch	\(-\frac {3 \left (b x +a \right )^{\frac {2}{3}} \left (-40 b^{3} x^{3}+45 a \,b^{2} x^{2}-54 a^{2} b x +81 a^{3}\right )}{440 b^{4}}\)	\(43\)
derivativedivides	\(\frac {\frac {3 \left (b x +a \right )^{\frac {11}{3}}}{11}-\frac {9 a \left (b x +a \right )^{\frac {8}{3}}}{8}+\frac {9 a^{2} \left (b x +a \right )^{\frac {5}{3}}}{5}-\frac {3 a^{3} \left (b x +a \right )^{\frac {2}{3}}}{2}}{b^{4}}\)	\(50\)
default	\(\frac {\frac {3 \left (b x +a \right )^{\frac {11}{3}}}{11}-\frac {9 a \left (b x +a \right )^{\frac {8}{3}}}{8}+\frac {9 a^{2} \left (b x +a \right )^{\frac {5}{3}}}{5}-\frac {3 a^{3} \left (b x +a \right )^{\frac {2}{3}}}{2}}{b^{4}}\)	\(50\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3/(b*x+a)^(1/3),x,method=_RETURNVERBOSE)

[Out]

3/b^4*(1/11*(b*x+a)^(11/3)-3/8*a*(b*x+a)^(8/3)+3/5*a^2*(b*x+a)^(5/3)-1/2*a^3*(b*x+a)^(2/3))

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Maxima [A]
time = 0.26, size = 56, normalized size = 0.78 \begin {gather*} \frac {3 \, {\left (b x + a\right )}^{\frac {11}{3}}}{11 \, b^{4}} - \frac {9 \, {\left (b x + a\right )}^{\frac {8}{3}} a}{8 \, b^{4}} + \frac {9 \, {\left (b x + a\right )}^{\frac {5}{3}} a^{2}}{5 \, b^{4}} - \frac {3 \, {\left (b x + a\right )}^{\frac {2}{3}} a^{3}}{2 \, b^{4}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3/(b*x+a)^(1/3),x, algorithm="maxima")

[Out]

3/11*(b*x + a)^(11/3)/b^4 - 9/8*(b*x + a)^(8/3)*a/b^4 + 9/5*(b*x + a)^(5/3)*a^2/b^4 - 3/2*(b*x + a)^(2/3)*a^3/
b^4

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Fricas [A]
time = 0.30, size = 42, normalized size = 0.58 \begin {gather*} \frac {3 \, {\left (40 \, b^{3} x^{3} - 45 \, a b^{2} x^{2} + 54 \, a^{2} b x - 81 \, a^{3}\right )} {\left (b x + a\right )}^{\frac {2}{3}}}{440 \, b^{4}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3/(b*x+a)^(1/3),x, algorithm="fricas")

[Out]

3/440*(40*b^3*x^3 - 45*a*b^2*x^2 + 54*a^2*b*x - 81*a^3)*(b*x + a)^(2/3)/b^4

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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 1640 vs. \(2 (68) = 136\).
time = 1.29, size = 1640, normalized size = 22.78

result too large to display

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**3/(b*x+a)**(1/3),x)

[Out]

-243*a**(71/3)*(1 + b*x/a)**(2/3)/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7
*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) + 243*a**(71/3)/(440*a**20*b**4 +
2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5
+ 440*a**14*b**10*x**6) - 1296*a**(68/3)*b*x*(1 + b*x/a)**(2/3)/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**
18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) + 14
58*a**(68/3)*b*x/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**1
6*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) - 2808*a**(65/3)*b**2*x**2*(1 + b*x/a)**(2/3)/(440*
a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**
15*b**9*x**5 + 440*a**14*b**10*x**6) + 3645*a**(65/3)*b**2*x**2/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**
18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) - 31
20*a**(62/3)*b**3*x**3*(1 + b*x/a)**(2/3)/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a*
*17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) + 4860*a**(62/3)*b**3*x**3
/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 26
40*a**15*b**9*x**5 + 440*a**14*b**10*x**6) - 1710*a**(59/3)*b**4*x**4*(1 + b*x/a)**(2/3)/(440*a**20*b**4 + 264
0*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 4
40*a**14*b**10*x**6) + 3645*a**(59/3)*b**4*x**4/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8
800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) + 72*a**(56/3)*b**5*
x**5*(1 + b*x/a)**(2/3)/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 66
00*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) + 1458*a**(56/3)*b**5*x**5/(440*a**20*b**4 +
2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5
+ 440*a**14*b**10*x**6) + 1104*a**(53/3)*b**6*x**6*(1 + b*x/a)**(2/3)/(440*a**20*b**4 + 2640*a**19*b**5*x + 6
600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**
6) + 243*a**(53/3)*b**6*x**6/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3
+ 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) + 1152*a**(50/3)*b**7*x**7*(1 + b*x/a)*
*(2/3)/(440*a**20*b**4 + 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**
4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**6) + 585*a**(47/3)*b**8*x**8*(1 + b*x/a)**(2/3)/(440*a**20*b**4
+ 2640*a**19*b**5*x + 6600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**
5 + 440*a**14*b**10*x**6) + 120*a**(44/3)*b**9*x**9*(1 + b*x/a)**(2/3)/(440*a**20*b**4 + 2640*a**19*b**5*x + 6
600*a**18*b**6*x**2 + 8800*a**17*b**7*x**3 + 6600*a**16*b**8*x**4 + 2640*a**15*b**9*x**5 + 440*a**14*b**10*x**
6)

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Giac [A]
time = 0.00, size = 95, normalized size = 1.32 \begin {gather*} \frac {3 \left (\frac {1}{11} \left (\left (a+b x\right )^{\frac {1}{3}}\right )^{2} \left (a+b x\right )^{3}-\frac {3}{8} \left (\left (a+b x\right )^{\frac {1}{3}}\right )^{2} \left (a+b x\right )^{2} a+\frac {3}{5} \left (\left (a+b x\right )^{\frac {1}{3}}\right )^{2} \left (a+b x\right ) a^{2}-\frac {1}{2} \left (\left (a+b x\right )^{\frac {1}{3}}\right )^{2} a^{3}\right )}{b b^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^3/(b*x+a)^(1/3),x)

[Out]

3/440*(40*(b*x + a)^(11/3) - 165*(b*x + a)^(8/3)*a + 264*(b*x + a)^(5/3)*a^2 - 220*(b*x + a)^(2/3)*a^3)/b^4

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Mupad [B]
time = 0.04, size = 56, normalized size = 0.78 \begin {gather*} \frac {3\,{\left (a+b\,x\right )}^{11/3}}{11\,b^4}-\frac {3\,a^3\,{\left (a+b\,x\right )}^{2/3}}{2\,b^4}+\frac {9\,a^2\,{\left (a+b\,x\right )}^{5/3}}{5\,b^4}-\frac {9\,a\,{\left (a+b\,x\right )}^{8/3}}{8\,b^4} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^3/(a + b*x)^(1/3),x)

[Out]

(3*(a + b*x)^(11/3))/(11*b^4) - (3*a^3*(a + b*x)^(2/3))/(2*b^4) + (9*a^2*(a + b*x)^(5/3))/(5*b^4) - (9*a*(a +
b*x)^(8/3))/(8*b^4)

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