3.163 \(\int \frac {(b x^2+c x^4)^3}{x^7} \, dx\)

Optimal. Leaf size=39 \[ b^3 \log (x)+\frac {3}{2} b^2 c x^2+\frac {3}{4} b c^2 x^4+\frac {c^3 x^6}{6} \]

[Out]

3/2*b^2*c*x^2+3/4*b*c^2*x^4+1/6*c^3*x^6+b^3*ln(x)

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Rubi [A]  time = 0.03, antiderivative size = 39, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 3, integrand size = 17, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.176, Rules used = {1584, 266, 43} \[ \frac {3}{2} b^2 c x^2+b^3 \log (x)+\frac {3}{4} b c^2 x^4+\frac {c^3 x^6}{6} \]

Antiderivative was successfully verified.

[In]

Int[(b*x^2 + c*x^4)^3/x^7,x]

[Out]

(3*b^2*c*x^2)/2 + (3*b*c^2*x^4)/4 + (c^3*x^6)/6 + b^3*Log[x]

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])

Rule 266

Int[(x_)^(m_.)*((a_) + (b_.)*(x_)^(n_))^(p_), x_Symbol] :> Dist[1/n, Subst[Int[x^(Simplify[(m + 1)/n] - 1)*(a
+ b*x)^p, x], x, x^n], x] /; FreeQ[{a, b, m, n, p}, x] && IntegerQ[Simplify[(m + 1)/n]]

Rule 1584

Int[(u_.)*(x_)^(m_.)*((a_.)*(x_)^(p_.) + (b_.)*(x_)^(q_.))^(n_.), x_Symbol] :> Int[u*x^(m + n*p)*(a + b*x^(q -
p))^n, x] /; FreeQ[{a, b, m, p, q}, x] && IntegerQ[n] && PosQ[q - p]

Rubi steps

\begin {align*} \int \frac {\left (b x^2+c x^4\right )^3}{x^7} \, dx &=\int \frac {\left (b+c x^2\right )^3}{x} \, dx\\ &=\frac {1}{2} \operatorname {Subst}\left (\int \frac {(b+c x)^3}{x} \, dx,x,x^2\right )\\ &=\frac {1}{2} \operatorname {Subst}\left (\int \left (3 b^2 c+\frac {b^3}{x}+3 b c^2 x+c^3 x^2\right ) \, dx,x,x^2\right )\\ &=\frac {3}{2} b^2 c x^2+\frac {3}{4} b c^2 x^4+\frac {c^3 x^6}{6}+b^3 \log (x)\\ \end {align*}

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Mathematica [A]  time = 0.00, size = 39, normalized size = 1.00 \[ b^3 \log (x)+\frac {3}{2} b^2 c x^2+\frac {3}{4} b c^2 x^4+\frac {c^3 x^6}{6} \]

Antiderivative was successfully verified.

[In]

Integrate[(b*x^2 + c*x^4)^3/x^7,x]

[Out]

(3*b^2*c*x^2)/2 + (3*b*c^2*x^4)/4 + (c^3*x^6)/6 + b^3*Log[x]

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fricas [A]  time = 0.75, size = 33, normalized size = 0.85 \[ \frac {1}{6} \, c^{3} x^{6} + \frac {3}{4} \, b c^{2} x^{4} + \frac {3}{2} \, b^{2} c x^{2} + b^{3} \log \relax (x) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^4+b*x^2)^3/x^7,x, algorithm="fricas")

[Out]

1/6*c^3*x^6 + 3/4*b*c^2*x^4 + 3/2*b^2*c*x^2 + b^3*log(x)

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giac [A]  time = 0.15, size = 36, normalized size = 0.92 \[ \frac {1}{6} \, c^{3} x^{6} + \frac {3}{4} \, b c^{2} x^{4} + \frac {3}{2} \, b^{2} c x^{2} + \frac {1}{2} \, b^{3} \log \left (x^{2}\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^4+b*x^2)^3/x^7,x, algorithm="giac")

[Out]

1/6*c^3*x^6 + 3/4*b*c^2*x^4 + 3/2*b^2*c*x^2 + 1/2*b^3*log(x^2)

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maple [A]  time = 0.00, size = 34, normalized size = 0.87 \[ \frac {c^{3} x^{6}}{6}+\frac {3 b \,c^{2} x^{4}}{4}+\frac {3 b^{2} c \,x^{2}}{2}+b^{3} \ln \relax (x ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((c*x^4+b*x^2)^3/x^7,x)

[Out]

3/2*b^2*c*x^2+3/4*b*c^2*x^4+1/6*c^3*x^6+b^3*ln(x)

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maxima [A]  time = 1.33, size = 36, normalized size = 0.92 \[ \frac {1}{6} \, c^{3} x^{6} + \frac {3}{4} \, b c^{2} x^{4} + \frac {3}{2} \, b^{2} c x^{2} + \frac {1}{2} \, b^{3} \log \left (x^{2}\right ) \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x^4+b*x^2)^3/x^7,x, algorithm="maxima")

[Out]

1/6*c^3*x^6 + 3/4*b*c^2*x^4 + 3/2*b^2*c*x^2 + 1/2*b^3*log(x^2)

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mupad [B]  time = 0.04, size = 33, normalized size = 0.85 \[ b^3\,\ln \relax (x)+\frac {c^3\,x^6}{6}+\frac {3\,b^2\,c\,x^2}{2}+\frac {3\,b\,c^2\,x^4}{4} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b*x^2 + c*x^4)^3/x^7,x)

[Out]

b^3*log(x) + (c^3*x^6)/6 + (3*b^2*c*x^2)/2 + (3*b*c^2*x^4)/4

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sympy [A]  time = 0.12, size = 37, normalized size = 0.95 \[ b^{3} \log {\relax (x )} + \frac {3 b^{2} c x^{2}}{2} + \frac {3 b c^{2} x^{4}}{4} + \frac {c^{3} x^{6}}{6} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((c*x**4+b*x**2)**3/x**7,x)

[Out]

b**3*log(x) + 3*b**2*c*x**2/2 + 3*b*c**2*x**4/4 + c**3*x**6/6

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