3.1.73 \(\int x^2 (a x+b x^3+c x^5)^2 \, dx\)

Optimal. Leaf size=54 \[ \frac {a^2 x^5}{5}+\frac {1}{9} x^9 \left (2 a c+b^2\right )+\frac {2}{7} a b x^7+\frac {2}{11} b c x^{11}+\frac {c^2 x^{13}}{13} \]

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Rubi [A]  time = 0.04, antiderivative size = 54, 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 = {1585, 1108} \begin {gather*} \frac {a^2 x^5}{5}+\frac {1}{9} x^9 \left (2 a c+b^2\right )+\frac {2}{7} a b x^7+\frac {2}{11} b c x^{11}+\frac {c^2 x^{13}}{13} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[x^2*(a*x + b*x^3 + c*x^5)^2,x]

[Out]

(a^2*x^5)/5 + (2*a*b*x^7)/7 + ((b^2 + 2*a*c)*x^9)/9 + (2*b*c*x^11)/11 + (c^2*x^13)/13

Rule 1108

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

Rule 1585

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

Rubi steps

\begin {align*} \int x^2 \left (a x+b x^3+c x^5\right )^2 \, dx &=\int x^4 \left (a+b x^2+c x^4\right )^2 \, dx\\ &=\int \left (a^2 x^4+2 a b x^6+\left (b^2+2 a c\right ) x^8+2 b c x^{10}+c^2 x^{12}\right ) \, dx\\ &=\frac {a^2 x^5}{5}+\frac {2}{7} a b x^7+\frac {1}{9} \left (b^2+2 a c\right ) x^9+\frac {2}{11} b c x^{11}+\frac {c^2 x^{13}}{13}\\ \end {align*}

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Mathematica [A]  time = 0.01, size = 54, normalized size = 1.00 \begin {gather*} \frac {a^2 x^5}{5}+\frac {1}{9} x^9 \left (2 a c+b^2\right )+\frac {2}{7} a b x^7+\frac {2}{11} b c x^{11}+\frac {c^2 x^{13}}{13} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[x^2*(a*x + b*x^3 + c*x^5)^2,x]

[Out]

(a^2*x^5)/5 + (2*a*b*x^7)/7 + ((b^2 + 2*a*c)*x^9)/9 + (2*b*c*x^11)/11 + (c^2*x^13)/13

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IntegrateAlgebraic [F]  time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int x^2 \left (a x+b x^3+c x^5\right )^2 \, dx \end {gather*}

Verification is not applicable to the result.

[In]

IntegrateAlgebraic[x^2*(a*x + b*x^3 + c*x^5)^2,x]

[Out]

IntegrateAlgebraic[x^2*(a*x + b*x^3 + c*x^5)^2, x]

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fricas [A]  time = 1.06, size = 46, normalized size = 0.85 \begin {gather*} \frac {1}{13} x^{13} c^{2} + \frac {2}{11} x^{11} c b + \frac {1}{9} x^{9} b^{2} + \frac {2}{9} x^{9} c a + \frac {2}{7} x^{7} b a + \frac {1}{5} x^{5} a^{2} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(c*x^5+b*x^3+a*x)^2,x, algorithm="fricas")

[Out]

1/13*x^13*c^2 + 2/11*x^11*c*b + 1/9*x^9*b^2 + 2/9*x^9*c*a + 2/7*x^7*b*a + 1/5*x^5*a^2

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giac [A]  time = 0.41, size = 46, normalized size = 0.85 \begin {gather*} \frac {1}{13} \, c^{2} x^{13} + \frac {2}{11} \, b c x^{11} + \frac {1}{9} \, b^{2} x^{9} + \frac {2}{9} \, a c x^{9} + \frac {2}{7} \, a b x^{7} + \frac {1}{5} \, a^{2} x^{5} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(c*x^5+b*x^3+a*x)^2,x, algorithm="giac")

[Out]

1/13*c^2*x^13 + 2/11*b*c*x^11 + 1/9*b^2*x^9 + 2/9*a*c*x^9 + 2/7*a*b*x^7 + 1/5*a^2*x^5

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maple [A]  time = 0.00, size = 45, normalized size = 0.83 \begin {gather*} \frac {c^{2} x^{13}}{13}+\frac {2 b c \,x^{11}}{11}+\frac {2 a b \,x^{7}}{7}+\frac {\left (2 a c +b^{2}\right ) x^{9}}{9}+\frac {a^{2} x^{5}}{5} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^2*(c*x^5+b*x^3+a*x)^2,x)

[Out]

1/5*a^2*x^5+2/7*a*b*x^7+1/9*(2*a*c+b^2)*x^9+2/11*b*c*x^11+1/13*c^2*x^13

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maxima [A]  time = 0.42, size = 44, normalized size = 0.81 \begin {gather*} \frac {1}{13} \, c^{2} x^{13} + \frac {2}{11} \, b c x^{11} + \frac {1}{9} \, {\left (b^{2} + 2 \, a c\right )} x^{9} + \frac {2}{7} \, a b x^{7} + \frac {1}{5} \, a^{2} x^{5} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x^2*(c*x^5+b*x^3+a*x)^2,x, algorithm="maxima")

[Out]

1/13*c^2*x^13 + 2/11*b*c*x^11 + 1/9*(b^2 + 2*a*c)*x^9 + 2/7*a*b*x^7 + 1/5*a^2*x^5

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mupad [B]  time = 0.03, size = 45, normalized size = 0.83 \begin {gather*} x^9\,\left (\frac {b^2}{9}+\frac {2\,a\,c}{9}\right )+\frac {a^2\,x^5}{5}+\frac {c^2\,x^{13}}{13}+\frac {2\,a\,b\,x^7}{7}+\frac {2\,b\,c\,x^{11}}{11} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(x^2*(a*x + b*x^3 + c*x^5)^2,x)

[Out]

x^9*((2*a*c)/9 + b^2/9) + (a^2*x^5)/5 + (c^2*x^13)/13 + (2*a*b*x^7)/7 + (2*b*c*x^11)/11

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sympy [A]  time = 0.08, size = 51, normalized size = 0.94 \begin {gather*} \frac {a^{2} x^{5}}{5} + \frac {2 a b x^{7}}{7} + \frac {2 b c x^{11}}{11} + \frac {c^{2} x^{13}}{13} + x^{9} \left (\frac {2 a c}{9} + \frac {b^{2}}{9}\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(x**2*(c*x**5+b*x**3+a*x)**2,x)

[Out]

a**2*x**5/5 + 2*a*b*x**7/7 + 2*b*c*x**11/11 + c**2*x**13/13 + x**9*(2*a*c/9 + b**2/9)

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