3.95 \(\int \frac {x^{5/2}}{\sqrt {b x+c x^2}} \, dx\)

Optimal. Leaf size=80 \[ \frac {16 b^2 \sqrt {b x+c x^2}}{15 c^3 \sqrt {x}}-\frac {8 b \sqrt {x} \sqrt {b x+c x^2}}{15 c^2}+\frac {2 x^{3/2} \sqrt {b x+c x^2}}{5 c} \]

[Out]

2/5*x^(3/2)*(c*x^2+b*x)^(1/2)/c+16/15*b^2*(c*x^2+b*x)^(1/2)/c^3/x^(1/2)-8/15*b*x^(1/2)*(c*x^2+b*x)^(1/2)/c^2

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Rubi [A]  time = 0.03, antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 19, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.105, Rules used = {656, 648} \[ \frac {16 b^2 \sqrt {b x+c x^2}}{15 c^3 \sqrt {x}}-\frac {8 b \sqrt {x} \sqrt {b x+c x^2}}{15 c^2}+\frac {2 x^{3/2} \sqrt {b x+c x^2}}{5 c} \]

Antiderivative was successfully verified.

[In]

Int[x^(5/2)/Sqrt[b*x + c*x^2],x]

[Out]

(16*b^2*Sqrt[b*x + c*x^2])/(15*c^3*Sqrt[x]) - (8*b*Sqrt[x]*Sqrt[b*x + c*x^2])/(15*c^2) + (2*x^(3/2)*Sqrt[b*x +
c*x^2])/(5*c)

Rule 648

Int[((d_.) + (e_.)*(x_))^(m_)*((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(p_), x_Symbol] :> Simp[(e*(d + e*x)^(m - 1)
*(a + b*x + c*x^2)^(p + 1))/(c*(p + 1)), x] /; FreeQ[{a, b, c, d, e, m, p}, x] && NeQ[b^2 - 4*a*c, 0] && EqQ[c
*d^2 - b*d*e + a*e^2, 0] &&  !IntegerQ[p] && EqQ[m + p, 0]

Rule 656

Int[((d_.) + (e_.)*(x_))^(m_)*((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(p_), x_Symbol] :> Simp[(e*(d + e*x)^(m - 1)
*(a + b*x + c*x^2)^(p + 1))/(c*(m + 2*p + 1)), x] + Dist[(Simplify[m + p]*(2*c*d - b*e))/(c*(m + 2*p + 1)), In
t[(d + e*x)^(m - 1)*(a + b*x + c*x^2)^p, x], x] /; FreeQ[{a, b, c, d, e, m, p}, x] && NeQ[b^2 - 4*a*c, 0] && E
qQ[c*d^2 - b*d*e + a*e^2, 0] &&  !IntegerQ[p] && IGtQ[Simplify[m + p], 0]

Rubi steps

\begin {align*} \int \frac {x^{5/2}}{\sqrt {b x+c x^2}} \, dx &=\frac {2 x^{3/2} \sqrt {b x+c x^2}}{5 c}-\frac {(4 b) \int \frac {x^{3/2}}{\sqrt {b x+c x^2}} \, dx}{5 c}\\ &=-\frac {8 b \sqrt {x} \sqrt {b x+c x^2}}{15 c^2}+\frac {2 x^{3/2} \sqrt {b x+c x^2}}{5 c}+\frac {\left (8 b^2\right ) \int \frac {\sqrt {x}}{\sqrt {b x+c x^2}} \, dx}{15 c^2}\\ &=\frac {16 b^2 \sqrt {b x+c x^2}}{15 c^3 \sqrt {x}}-\frac {8 b \sqrt {x} \sqrt {b x+c x^2}}{15 c^2}+\frac {2 x^{3/2} \sqrt {b x+c x^2}}{5 c}\\ \end {align*}

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Mathematica [A]  time = 0.02, size = 42, normalized size = 0.52 \[ \frac {2 \sqrt {x (b+c x)} \left (8 b^2-4 b c x+3 c^2 x^2\right )}{15 c^3 \sqrt {x}} \]

Antiderivative was successfully verified.

[In]

Integrate[x^(5/2)/Sqrt[b*x + c*x^2],x]

[Out]

(2*Sqrt[x*(b + c*x)]*(8*b^2 - 4*b*c*x + 3*c^2*x^2))/(15*c^3*Sqrt[x])

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fricas [A]  time = 0.96, size = 38, normalized size = 0.48 \[ \frac {2 \, {\left (3 \, c^{2} x^{2} - 4 \, b c x + 8 \, b^{2}\right )} \sqrt {c x^{2} + b x}}{15 \, c^{3} \sqrt {x}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^(5/2)/(c*x^2+b*x)^(1/2),x, algorithm="fricas")

[Out]

2/15*(3*c^2*x^2 - 4*b*c*x + 8*b^2)*sqrt(c*x^2 + b*x)/(c^3*sqrt(x))

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giac [A]  time = 0.21, size = 49, normalized size = 0.61 \[ \frac {2 \, \sqrt {c x + b} b^{2}}{c^{3}} - \frac {16 \, b^{\frac {5}{2}}}{15 \, c^{3}} + \frac {2 \, {\left (3 \, {\left (c x + b\right )}^{\frac {5}{2}} - 10 \, {\left (c x + b\right )}^{\frac {3}{2}} b\right )}}{15 \, c^{3}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^(5/2)/(c*x^2+b*x)^(1/2),x, algorithm="giac")

[Out]

2*sqrt(c*x + b)*b^2/c^3 - 16/15*b^(5/2)/c^3 + 2/15*(3*(c*x + b)^(5/2) - 10*(c*x + b)^(3/2)*b)/c^3

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maple [A]  time = 0.05, size = 44, normalized size = 0.55 \[ \frac {2 \left (c x +b \right ) \left (3 c^{2} x^{2}-4 b c x +8 b^{2}\right ) \sqrt {x}}{15 \sqrt {c \,x^{2}+b x}\, c^{3}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^(5/2)/(c*x^2+b*x)^(1/2),x)

[Out]

2/15*(c*x+b)*(3*c^2*x^2-4*b*c*x+8*b^2)*x^(1/2)/c^3/(c*x^2+b*x)^(1/2)

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maxima [A]  time = 1.50, size = 42, normalized size = 0.52 \[ \frac {2 \, {\left (3 \, c^{3} x^{3} - b c^{2} x^{2} + 4 \, b^{2} c x + 8 \, b^{3}\right )}}{15 \, \sqrt {c x + b} c^{3}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^(5/2)/(c*x^2+b*x)^(1/2),x, algorithm="maxima")

[Out]

2/15*(3*c^3*x^3 - b*c^2*x^2 + 4*b^2*c*x + 8*b^3)/(sqrt(c*x + b)*c^3)

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mupad [F]  time = 0.00, size = -1, normalized size = -0.01 \[ \int \frac {x^{5/2}}{\sqrt {c\,x^2+b\,x}} \,d x \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^(5/2)/(b*x + c*x^2)^(1/2),x)

[Out]

int(x^(5/2)/(b*x + c*x^2)^(1/2), x)

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sympy [F]  time = 0.00, size = 0, normalized size = 0.00 \[ \int \frac {x^{\frac {5}{2}}}{\sqrt {x \left (b + c x\right )}}\, dx \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**(5/2)/(c*x**2+b*x)**(1/2),x)

[Out]

Integral(x**(5/2)/sqrt(x*(b + c*x)), x)

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