3.251 \(\int \frac{x}{\left (\sqrt{a+b x}+\sqrt{c+b x}\right )^3} \, dx\)

Optimal. Leaf size=261 \[ \frac{8 a^2 (a+b x)^{3/2}}{3 b^2 (a-c)^3}-\frac{8 c^2 (b x+c)^{3/2}}{3 b^2 (a-c)^3}+\frac{8 (a+b x)^{7/2}}{7 b^2 (a-c)^3}+\frac{2 (a+3 c) (a+b x)^{5/2}}{5 b^2 (a-c)^3}-\frac{16 a (a+b x)^{5/2}}{5 b^2 (a-c)^3}-\frac{2 a (a+3 c) (a+b x)^{3/2}}{3 b^2 (a-c)^3}-\frac{8 (b x+c)^{7/2}}{7 b^2 (a-c)^3}+\frac{16 c (b x+c)^{5/2}}{5 b^2 (a-c)^3}-\frac{2 (3 a+c) (b x+c)^{5/2}}{5 b^2 (a-c)^3}+\frac{2 c (3 a+c) (b x+c)^{3/2}}{3 b^2 (a-c)^3} \]

[Out]

(8*a^2*(a + b*x)^(3/2))/(3*b^2*(a - c)^3) - (2*a*(a + 3*c)*(a + b*x)^(3/2))/(3*b
^2*(a - c)^3) - (16*a*(a + b*x)^(5/2))/(5*b^2*(a - c)^3) + (2*(a + 3*c)*(a + b*x
)^(5/2))/(5*b^2*(a - c)^3) + (8*(a + b*x)^(7/2))/(7*b^2*(a - c)^3) - (8*c^2*(c +
 b*x)^(3/2))/(3*b^2*(a - c)^3) + (2*c*(3*a + c)*(c + b*x)^(3/2))/(3*b^2*(a - c)^
3) + (16*c*(c + b*x)^(5/2))/(5*b^2*(a - c)^3) - (2*(3*a + c)*(c + b*x)^(5/2))/(5
*b^2*(a - c)^3) - (8*(c + b*x)^(7/2))/(7*b^2*(a - c)^3)

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Rubi [A]  time = 0.50518, antiderivative size = 261, normalized size of antiderivative = 1., number of steps used = 10, number of rules used = 2, integrand size = 23, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.087 \[ \frac{8 a^2 (a+b x)^{3/2}}{3 b^2 (a-c)^3}-\frac{8 c^2 (b x+c)^{3/2}}{3 b^2 (a-c)^3}+\frac{8 (a+b x)^{7/2}}{7 b^2 (a-c)^3}+\frac{2 (a+3 c) (a+b x)^{5/2}}{5 b^2 (a-c)^3}-\frac{16 a (a+b x)^{5/2}}{5 b^2 (a-c)^3}-\frac{2 a (a+3 c) (a+b x)^{3/2}}{3 b^2 (a-c)^3}-\frac{8 (b x+c)^{7/2}}{7 b^2 (a-c)^3}+\frac{16 c (b x+c)^{5/2}}{5 b^2 (a-c)^3}-\frac{2 (3 a+c) (b x+c)^{5/2}}{5 b^2 (a-c)^3}+\frac{2 c (3 a+c) (b x+c)^{3/2}}{3 b^2 (a-c)^3} \]

Antiderivative was successfully verified.

[In]  Int[x/(Sqrt[a + b*x] + Sqrt[c + b*x])^3,x]

[Out]

(8*a^2*(a + b*x)^(3/2))/(3*b^2*(a - c)^3) - (2*a*(a + 3*c)*(a + b*x)^(3/2))/(3*b
^2*(a - c)^3) - (16*a*(a + b*x)^(5/2))/(5*b^2*(a - c)^3) + (2*(a + 3*c)*(a + b*x
)^(5/2))/(5*b^2*(a - c)^3) + (8*(a + b*x)^(7/2))/(7*b^2*(a - c)^3) - (8*c^2*(c +
 b*x)^(3/2))/(3*b^2*(a - c)^3) + (2*c*(3*a + c)*(c + b*x)^(3/2))/(3*b^2*(a - c)^
3) + (16*c*(c + b*x)^(5/2))/(5*b^2*(a - c)^3) - (2*(3*a + c)*(c + b*x)^(5/2))/(5
*b^2*(a - c)^3) - (8*(c + b*x)^(7/2))/(7*b^2*(a - c)^3)

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Rubi in Sympy [A]  time = 53.0561, size = 236, normalized size = 0.9 \[ \frac{8 a^{2} \left (a + b x\right )^{\frac{3}{2}}}{3 b^{2} \left (a - c\right )^{3}} - \frac{2 a \left (a + 3 c\right ) \left (a + b x\right )^{\frac{3}{2}}}{3 b^{2} \left (a - c\right )^{3}} - \frac{16 a \left (a + b x\right )^{\frac{5}{2}}}{5 b^{2} \left (a - c\right )^{3}} - \frac{8 c^{2} \left (b x + c\right )^{\frac{3}{2}}}{3 b^{2} \left (a - c\right )^{3}} + \frac{2 c \left (3 a + c\right ) \left (b x + c\right )^{\frac{3}{2}}}{3 b^{2} \left (a - c\right )^{3}} + \frac{16 c \left (b x + c\right )^{\frac{5}{2}}}{5 b^{2} \left (a - c\right )^{3}} + \frac{2 \left (a + 3 c\right ) \left (a + b x\right )^{\frac{5}{2}}}{5 b^{2} \left (a - c\right )^{3}} + \frac{8 \left (a + b x\right )^{\frac{7}{2}}}{7 b^{2} \left (a - c\right )^{3}} - \frac{2 \left (3 a + c\right ) \left (b x + c\right )^{\frac{5}{2}}}{5 b^{2} \left (a - c\right )^{3}} - \frac{8 \left (b x + c\right )^{\frac{7}{2}}}{7 b^{2} \left (a - c\right )^{3}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  rubi_integrate(x/((b*x+a)**(1/2)+(b*x+c)**(1/2))**3,x)

[Out]

8*a**2*(a + b*x)**(3/2)/(3*b**2*(a - c)**3) - 2*a*(a + 3*c)*(a + b*x)**(3/2)/(3*
b**2*(a - c)**3) - 16*a*(a + b*x)**(5/2)/(5*b**2*(a - c)**3) - 8*c**2*(b*x + c)*
*(3/2)/(3*b**2*(a - c)**3) + 2*c*(3*a + c)*(b*x + c)**(3/2)/(3*b**2*(a - c)**3)
+ 16*c*(b*x + c)**(5/2)/(5*b**2*(a - c)**3) + 2*(a + 3*c)*(a + b*x)**(5/2)/(5*b*
*2*(a - c)**3) + 8*(a + b*x)**(7/2)/(7*b**2*(a - c)**3) - 2*(3*a + c)*(b*x + c)*
*(5/2)/(5*b**2*(a - c)**3) - 8*(b*x + c)**(7/2)/(7*b**2*(a - c)**3)

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Mathematica [A]  time = 0.397595, size = 93, normalized size = 0.36 \[ \frac{2 \left ((a+b x)^{3/2} \left (6 a^2-a (9 b x+14 c)+b x (20 b x+21 c)\right )+(b x+c)^{3/2} \left (7 a (2 c-3 b x)-20 b^2 x^2+9 b c x-6 c^2\right )\right )}{35 b^2 (a-c)^3} \]

Antiderivative was successfully verified.

[In]  Integrate[x/(Sqrt[a + b*x] + Sqrt[c + b*x])^3,x]

[Out]

(2*((c + b*x)^(3/2)*(-6*c^2 + 9*b*c*x - 20*b^2*x^2 + 7*a*(2*c - 3*b*x)) + (a + b
*x)^(3/2)*(6*a^2 - a*(14*c + 9*b*x) + b*x*(21*c + 20*b*x))))/(35*b^2*(a - c)^3)

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Maple [A]  time = 0.004, size = 222, normalized size = 0.9 \[ 2\,{\frac{a \left ( 1/5\, \left ( bx+a \right ) ^{5/2}-1/3\, \left ( bx+a \right ) ^{3/2}a \right ) }{ \left ( a-c \right ) ^{3}{b}^{2}}}+6\,{\frac{c \left ( 1/5\, \left ( bx+a \right ) ^{5/2}-1/3\, \left ( bx+a \right ) ^{3/2}a \right ) }{ \left ( a-c \right ) ^{3}{b}^{2}}}-6\,{\frac{a \left ( 1/5\, \left ( bx+c \right ) ^{5/2}-1/3\, \left ( bx+c \right ) ^{3/2}c \right ) }{ \left ( a-c \right ) ^{3}{b}^{2}}}-2\,{\frac{c \left ( 1/5\, \left ( bx+c \right ) ^{5/2}-1/3\, \left ( bx+c \right ) ^{3/2}c \right ) }{ \left ( a-c \right ) ^{3}{b}^{2}}}+8\,{\frac{1/7\, \left ( bx+a \right ) ^{7/2}-2/5\, \left ( bx+a \right ) ^{5/2}a+1/3\,{a}^{2} \left ( bx+a \right ) ^{3/2}}{ \left ( a-c \right ) ^{3}{b}^{2}}}-8\,{\frac{1/7\, \left ( bx+c \right ) ^{7/2}-2/5\, \left ( bx+c \right ) ^{5/2}c+1/3\,{c}^{2} \left ( bx+c \right ) ^{3/2}}{ \left ( a-c \right ) ^{3}{b}^{2}}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  int(x/((b*x+a)^(1/2)+(b*x+c)^(1/2))^3,x)

[Out]

2/(a-c)^3*a/b^2*(1/5*(b*x+a)^(5/2)-1/3*(b*x+a)^(3/2)*a)+6/(a-c)^3*c/b^2*(1/5*(b*
x+a)^(5/2)-1/3*(b*x+a)^(3/2)*a)-6/(a-c)^3*a/b^2*(1/5*(b*x+c)^(5/2)-1/3*(b*x+c)^(
3/2)*c)-2/(a-c)^3*c/b^2*(1/5*(b*x+c)^(5/2)-1/3*(b*x+c)^(3/2)*c)+8/(a-c)^3/b^2*(1
/7*(b*x+a)^(7/2)-2/5*(b*x+a)^(5/2)*a+1/3*a^2*(b*x+a)^(3/2))-8/(a-c)^3/b^2*(1/7*(
b*x+c)^(7/2)-2/5*(b*x+c)^(5/2)*c+1/3*c^2*(b*x+c)^(3/2))

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Maxima [F]  time = 0., size = 0, normalized size = 0. \[ \int \frac{x}{{\left (\sqrt{b x + a} + \sqrt{b x + c}\right )}^{3}}\,{d x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x/(sqrt(b*x + a) + sqrt(b*x + c))^3,x, algorithm="maxima")

[Out]

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

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Fricas [A]  time = 0.275982, size = 215, normalized size = 0.82 \[ \frac{2 \,{\left ({\left (20 \, b^{3} x^{3} + 6 \, a^{3} - 14 \, a^{2} c +{\left (11 \, a b^{2} + 21 \, b^{2} c\right )} x^{2} -{\left (3 \, a^{2} b - 7 \, a b c\right )} x\right )} \sqrt{b x + a} -{\left (20 \, b^{3} x^{3} - 14 \, a c^{2} + 6 \, c^{3} +{\left (21 \, a b^{2} + 11 \, b^{2} c\right )} x^{2} +{\left (7 \, a b c - 3 \, b c^{2}\right )} x\right )} \sqrt{b x + c}\right )}}{35 \,{\left (a^{3} b^{2} - 3 \, a^{2} b^{2} c + 3 \, a b^{2} c^{2} - b^{2} c^{3}\right )}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x/(sqrt(b*x + a) + sqrt(b*x + c))^3,x, algorithm="fricas")

[Out]

2/35*((20*b^3*x^3 + 6*a^3 - 14*a^2*c + (11*a*b^2 + 21*b^2*c)*x^2 - (3*a^2*b - 7*
a*b*c)*x)*sqrt(b*x + a) - (20*b^3*x^3 - 14*a*c^2 + 6*c^3 + (21*a*b^2 + 11*b^2*c)
*x^2 + (7*a*b*c - 3*b*c^2)*x)*sqrt(b*x + c))/(a^3*b^2 - 3*a^2*b^2*c + 3*a*b^2*c^
2 - b^2*c^3)

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Sympy [A]  time = 7.27523, size = 942, normalized size = 3.61 \[ \begin{cases} \frac{12 a^{2}}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{54 a b x}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{44 a c}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{36 a \sqrt{a + b x} \sqrt{b x + c}}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{40 b^{2} x^{2}}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{54 b c x}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{30 b x \sqrt{a + b x} \sqrt{b x + c}}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{12 c^{2}}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} + \frac{36 c \sqrt{a + b x} \sqrt{b x + c}}{35 a b^{2} \sqrt{a + b x} + 105 a b^{2} \sqrt{b x + c} + 140 b^{3} x \sqrt{a + b x} + 140 b^{3} x \sqrt{b x + c} + 105 b^{2} c \sqrt{a + b x} + 35 b^{2} c \sqrt{b x + c}} & \text{for}\: b \neq 0 \\\frac{x^{2}}{2 \left (\sqrt{a} + \sqrt{c}\right )^{3}} & \text{otherwise} \end{cases} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x/((b*x+a)**(1/2)+(b*x+c)**(1/2))**3,x)

[Out]

Piecewise((12*a**2/(35*a*b**2*sqrt(a + b*x) + 105*a*b**2*sqrt(b*x + c) + 140*b**
3*x*sqrt(a + b*x) + 140*b**3*x*sqrt(b*x + c) + 105*b**2*c*sqrt(a + b*x) + 35*b**
2*c*sqrt(b*x + c)) + 54*a*b*x/(35*a*b**2*sqrt(a + b*x) + 105*a*b**2*sqrt(b*x + c
) + 140*b**3*x*sqrt(a + b*x) + 140*b**3*x*sqrt(b*x + c) + 105*b**2*c*sqrt(a + b*
x) + 35*b**2*c*sqrt(b*x + c)) + 44*a*c/(35*a*b**2*sqrt(a + b*x) + 105*a*b**2*sqr
t(b*x + c) + 140*b**3*x*sqrt(a + b*x) + 140*b**3*x*sqrt(b*x + c) + 105*b**2*c*sq
rt(a + b*x) + 35*b**2*c*sqrt(b*x + c)) + 36*a*sqrt(a + b*x)*sqrt(b*x + c)/(35*a*
b**2*sqrt(a + b*x) + 105*a*b**2*sqrt(b*x + c) + 140*b**3*x*sqrt(a + b*x) + 140*b
**3*x*sqrt(b*x + c) + 105*b**2*c*sqrt(a + b*x) + 35*b**2*c*sqrt(b*x + c)) + 40*b
**2*x**2/(35*a*b**2*sqrt(a + b*x) + 105*a*b**2*sqrt(b*x + c) + 140*b**3*x*sqrt(a
 + b*x) + 140*b**3*x*sqrt(b*x + c) + 105*b**2*c*sqrt(a + b*x) + 35*b**2*c*sqrt(b
*x + c)) + 54*b*c*x/(35*a*b**2*sqrt(a + b*x) + 105*a*b**2*sqrt(b*x + c) + 140*b*
*3*x*sqrt(a + b*x) + 140*b**3*x*sqrt(b*x + c) + 105*b**2*c*sqrt(a + b*x) + 35*b*
*2*c*sqrt(b*x + c)) + 30*b*x*sqrt(a + b*x)*sqrt(b*x + c)/(35*a*b**2*sqrt(a + b*x
) + 105*a*b**2*sqrt(b*x + c) + 140*b**3*x*sqrt(a + b*x) + 140*b**3*x*sqrt(b*x +
c) + 105*b**2*c*sqrt(a + b*x) + 35*b**2*c*sqrt(b*x + c)) + 12*c**2/(35*a*b**2*sq
rt(a + b*x) + 105*a*b**2*sqrt(b*x + c) + 140*b**3*x*sqrt(a + b*x) + 140*b**3*x*s
qrt(b*x + c) + 105*b**2*c*sqrt(a + b*x) + 35*b**2*c*sqrt(b*x + c)) + 36*c*sqrt(a
 + b*x)*sqrt(b*x + c)/(35*a*b**2*sqrt(a + b*x) + 105*a*b**2*sqrt(b*x + c) + 140*
b**3*x*sqrt(a + b*x) + 140*b**3*x*sqrt(b*x + c) + 105*b**2*c*sqrt(a + b*x) + 35*
b**2*c*sqrt(b*x + c)), Ne(b, 0)), (x**2/(2*(sqrt(a) + sqrt(c))**3), True))

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GIAC/XCAS [F(-1)]  time = 0., size = 0, normalized size = 0. \[ \text{Timed out} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate(x/(sqrt(b*x + a) + sqrt(b*x + c))^3,x, algorithm="giac")

[Out]

Timed out