3.8.83 \(\int \frac {(c x^2)^{5/2} (a+b x)^2}{x^4} \, dx\)

Optimal. Leaf size=64 \[ \frac {1}{2} a^2 c^2 x \sqrt {c x^2}+\frac {2}{3} a b c^2 x^2 \sqrt {c x^2}+\frac {1}{4} b^2 c^2 x^3 \sqrt {c x^2} \]

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Rubi [A]  time = 0.01, antiderivative size = 64, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {15, 43} \begin {gather*} \frac {1}{2} a^2 c^2 x \sqrt {c x^2}+\frac {2}{3} a b c^2 x^2 \sqrt {c x^2}+\frac {1}{4} b^2 c^2 x^3 \sqrt {c x^2} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[((c*x^2)^(5/2)*(a + b*x)^2)/x^4,x]

[Out]

(a^2*c^2*x*Sqrt[c*x^2])/2 + (2*a*b*c^2*x^2*Sqrt[c*x^2])/3 + (b^2*c^2*x^3*Sqrt[c*x^2])/4

Rule 15

Int[(u_.)*((a_.)*(x_)^(n_))^(m_), x_Symbol] :> Dist[(a^IntPart[m]*(a*x^n)^FracPart[m])/x^(n*FracPart[m]), Int[
u*x^(m*n), x], x] /; FreeQ[{a, m, n}, x] &&  !IntegerQ[m]

Rule 43

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 {\left (c x^2\right )^{5/2} (a+b x)^2}{x^4} \, dx &=\frac {\left (c^2 \sqrt {c x^2}\right ) \int x (a+b x)^2 \, dx}{x}\\ &=\frac {\left (c^2 \sqrt {c x^2}\right ) \int \left (a^2 x+2 a b x^2+b^2 x^3\right ) \, dx}{x}\\ &=\frac {1}{2} a^2 c^2 x \sqrt {c x^2}+\frac {2}{3} a b c^2 x^2 \sqrt {c x^2}+\frac {1}{4} b^2 c^2 x^3 \sqrt {c x^2}\\ \end {align*}

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Mathematica [A]  time = 0.00, size = 36, normalized size = 0.56 \begin {gather*} \frac {1}{12} c^2 x \sqrt {c x^2} \left (6 a^2+8 a b x+3 b^2 x^2\right ) \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[((c*x^2)^(5/2)*(a + b*x)^2)/x^4,x]

[Out]

(c^2*x*Sqrt[c*x^2]*(6*a^2 + 8*a*b*x + 3*b^2*x^2))/12

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IntegrateAlgebraic [A]  time = 0.03, size = 35, normalized size = 0.55 \begin {gather*} \frac {\left (c x^2\right )^{5/2} \left (6 a^2+8 a b x+3 b^2 x^2\right )}{12 x^3} \end {gather*}

Antiderivative was successfully verified.

[In]

IntegrateAlgebraic[((c*x^2)^(5/2)*(a + b*x)^2)/x^4,x]

[Out]

((c*x^2)^(5/2)*(6*a^2 + 8*a*b*x + 3*b^2*x^2))/(12*x^3)

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fricas [A]  time = 1.18, size = 40, normalized size = 0.62 \begin {gather*} \frac {1}{12} \, {\left (3 \, b^{2} c^{2} x^{3} + 8 \, a b c^{2} x^{2} + 6 \, a^{2} c^{2} x\right )} \sqrt {c x^{2}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^2)^(5/2)*(b*x+a)^2/x^4,x, algorithm="fricas")

[Out]

1/12*(3*b^2*c^2*x^3 + 8*a*b*c^2*x^2 + 6*a^2*c^2*x)*sqrt(c*x^2)

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giac [A]  time = 1.05, size = 44, normalized size = 0.69 \begin {gather*} \frac {1}{12} \, {\left (3 \, b^{2} c^{2} x^{4} \mathrm {sgn}\relax (x) + 8 \, a b c^{2} x^{3} \mathrm {sgn}\relax (x) + 6 \, a^{2} c^{2} x^{2} \mathrm {sgn}\relax (x)\right )} \sqrt {c} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^2)^(5/2)*(b*x+a)^2/x^4,x, algorithm="giac")

[Out]

1/12*(3*b^2*c^2*x^4*sgn(x) + 8*a*b*c^2*x^3*sgn(x) + 6*a^2*c^2*x^2*sgn(x))*sqrt(c)

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maple [A]  time = 0.00, size = 32, normalized size = 0.50 \begin {gather*} \frac {\left (3 b^{2} x^{2}+8 a b x +6 a^{2}\right ) \left (c \,x^{2}\right )^{\frac {5}{2}}}{12 x^{3}} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((c*x^2)^(5/2)*(b*x+a)^2/x^4,x)

[Out]

1/12/x^3*(3*b^2*x^2+8*a*b*x+6*a^2)*(c*x^2)^(5/2)

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maxima [F(-2)]  time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: RuntimeError} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^2)^(5/2)*(b*x+a)^2/x^4,x, algorithm="maxima")

[Out]

Exception raised: RuntimeError >> ECL says: Error executing code in Maxima: expt: undefined: 0 to a negative e
xponent.

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mupad [F]  time = 0.00, size = -1, normalized size = -0.02 \begin {gather*} \int \frac {{\left (c\,x^2\right )}^{5/2}\,{\left (a+b\,x\right )}^2}{x^4} \,d x \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(((c*x^2)^(5/2)*(a + b*x)^2)/x^4,x)

[Out]

int(((c*x^2)^(5/2)*(a + b*x)^2)/x^4, x)

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sympy [A]  time = 2.01, size = 60, normalized size = 0.94 \begin {gather*} \frac {a^{2} c^{\frac {5}{2}} \left (x^{2}\right )^{\frac {5}{2}}}{2 x^{3}} + \frac {2 a b c^{\frac {5}{2}} \left (x^{2}\right )^{\frac {5}{2}}}{3 x^{2}} + \frac {b^{2} c^{\frac {5}{2}} \left (x^{2}\right )^{\frac {5}{2}}}{4 x} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x**2)**(5/2)*(b*x+a)**2/x**4,x)

[Out]

a**2*c**(5/2)*(x**2)**(5/2)/(2*x**3) + 2*a*b*c**(5/2)*(x**2)**(5/2)/(3*x**2) + b**2*c**(5/2)*(x**2)**(5/2)/(4*
x)

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