\(\int \frac {(a+b x)^2}{(c x^2)^{5/2}} \, dx\) [847]

Optimal result

Integrand size = 17, antiderivative size = 66 \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=-\frac {a^2}{4 c^2 x^3 \sqrt {c x^2}}-\frac {2 a b}{3 c^2 x^2 \sqrt {c x^2}}-\frac {b^2}{2 c^2 x \sqrt {c x^2}} \]

[Out]

-1/4*a^2/c^2/x^3/(c*x^2)^(1/2)-2/3*a*b/c^2/x^2/(c*x^2)^(1/2)-1/2*b^2/c^2/x/(c*x^2)^(1/2)

Rubi [A] (verified)

Time = 0.01 (sec) , antiderivative size = 66, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 2, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.118, Rules used = {15, 45} \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=-\frac {a^2}{4 c^2 x^3 \sqrt {c x^2}}-\frac {2 a b}{3 c^2 x^2 \sqrt {c x^2}}-\frac {b^2}{2 c^2 x \sqrt {c x^2}} \]

[In]

Int[(a + b*x)^2/(c*x^2)^(5/2),x]

[Out]

-1/4*a^2/(c^2*x^3*Sqrt[c*x^2]) - (2*a*b)/(3*c^2*x^2*Sqrt[c*x^2]) - b^2/(2*c^2*x*Sqrt[c*x^2])

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

Mathematica [A] (verified)

Time = 0.00 (sec) , antiderivative size = 33, normalized size of antiderivative = 0.50 \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=-\frac {x \left (3 a^2+8 a b x+6 b^2 x^2\right )}{12 \left (c x^2\right )^{5/2}} \]

[In]

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

[Out]

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

Maple [A] (verified)

Time = 0.12 (sec) , antiderivative size = 30, normalized size of antiderivative = 0.45

method	result	size
gosper	\(-\frac {x \left (6 b^{2} x^{2}+8 a b x +3 a^{2}\right )}{12 \left (c \,x^{2}\right )^{\frac {5}{2}}}\)	\(30\)
default	\(-\frac {x \left (6 b^{2} x^{2}+8 a b x +3 a^{2}\right )}{12 \left (c \,x^{2}\right )^{\frac {5}{2}}}\)	\(30\)
risch	\(\frac {-\frac {1}{2} b^{2} x^{2}-\frac {2}{3} a b x -\frac {1}{4} a^{2}}{c^{2} x^{3} \sqrt {c \,x^{2}}}\)	\(34\)
trager	\(\frac {\left (-1+x \right ) \left (3 a^{2} x^{3}+8 a b \,x^{3}+6 b^{2} x^{3}+3 a^{2} x^{2}+8 a b \,x^{2}+6 b^{2} x^{2}+3 a^{2} x +8 a b x +3 a^{2}\right ) \sqrt {c \,x^{2}}}{12 c^{3} x^{5}}\)	\(82\)

[In]

int((b*x+a)^2/(c*x^2)^(5/2),x,method=_RETURNVERBOSE)

[Out]

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

Fricas [A] (verification not implemented)

none

Time = 0.22 (sec) , antiderivative size = 34, normalized size of antiderivative = 0.52 \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=-\frac {{\left (6 \, b^{2} x^{2} + 8 \, a b x + 3 \, a^{2}\right )} \sqrt {c x^{2}}}{12 \, c^{3} x^{5}} \]

[In]

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

[Out]

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

Sympy [A] (verification not implemented)

Time = 0.73 (sec) , antiderivative size = 51, normalized size of antiderivative = 0.77 \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=- \frac {a^{2} x}{4 \left (c x^{2}\right )^{\frac {5}{2}}} - \frac {2 a b x^{2}}{3 \left (c x^{2}\right )^{\frac {5}{2}}} - \frac {b^{2} x^{3}}{2 \left (c x^{2}\right )^{\frac {5}{2}}} \]

[In]

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

[Out]

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

Maxima [A] (verification not implemented)

none

Time = 0.22 (sec) , antiderivative size = 37, normalized size of antiderivative = 0.56 \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=-\frac {2 \, a b}{3 \, \left (c x^{2}\right )^{\frac {3}{2}} c} - \frac {b^{2}}{2 \, c^{\frac {5}{2}} x^{2}} - \frac {a^{2}}{4 \, c^{\frac {5}{2}} x^{4}} \]

[In]

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

[Out]

-2/3*a*b/((c*x^2)^(3/2)*c) - 1/2*b^2/(c^(5/2)*x^2) - 1/4*a^2/(c^(5/2)*x^4)

Giac [A] (verification not implemented)

none

Time = 0.45 (sec) , antiderivative size = 31, normalized size of antiderivative = 0.47 \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=-\frac {6 \, b^{2} x^{2} + 8 \, a b x + 3 \, a^{2}}{12 \, c^{\frac {5}{2}} x^{4} \mathrm {sgn}\left (x\right )} \]

[In]

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

[Out]

-1/12*(6*b^2*x^2 + 8*a*b*x + 3*a^2)/(c^(5/2)*x^4*sgn(x))

Mupad [B] (verification not implemented)

Time = 0.19 (sec) , antiderivative size = 42, normalized size of antiderivative = 0.64 \[ \int \frac {(a+b x)^2}{\left (c x^2\right )^{5/2}} \, dx=-\frac {3\,a^2\,\sqrt {x^2}+6\,b^2\,x^2\,\sqrt {x^2}+8\,a\,b\,x\,\sqrt {x^2}}{12\,c^{5/2}\,x^5} \]

[In]

int((a + b*x)^2/(c*x^2)^(5/2),x)

[Out]

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