3.344 \(\int \left (\frac{a}{x}+b x\right )^2 \, dx\)

Optimal. Leaf size=24 \[ -\frac{a^2}{x}+2 a b x+\frac{b^2 x^3}{3} \]

[Out]

-(a^2/x) + 2*a*b*x + (b^2*x^3)/3

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Rubi [A]  time = 0.0290765, antiderivative size = 24, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 11, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.182 \[ -\frac{a^2}{x}+2 a b x+\frac{b^2 x^3}{3} \]

Antiderivative was successfully verified.

[In]  Int[(a/x + b*x)^2,x]

[Out]

-(a^2/x) + 2*a*b*x + (b^2*x^3)/3

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Rubi in Sympy [A]  time = 5.74351, size = 19, normalized size = 0.79 \[ - \frac{a^{2}}{x} + 2 a b x + \frac{b^{2} x^{3}}{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  rubi_integrate((a/x+b*x)**2,x)

[Out]

-a**2/x + 2*a*b*x + b**2*x**3/3

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Mathematica [A]  time = 0.00196566, size = 24, normalized size = 1. \[ -\frac{a^2}{x}+2 a b x+\frac{b^2 x^3}{3} \]

Antiderivative was successfully verified.

[In]  Integrate[(a/x + b*x)^2,x]

[Out]

-(a^2/x) + 2*a*b*x + (b^2*x^3)/3

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Maple [A]  time = 0.003, size = 23, normalized size = 1. \[ -{\frac{{a}^{2}}{x}}+2\,abx+{\frac{{b}^{2}{x}^{3}}{3}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  int((a/x+b*x)^2,x)

[Out]

-a^2/x+2*a*b*x+1/3*b^2*x^3

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Maxima [A]  time = 1.36792, size = 30, normalized size = 1.25 \[ \frac{1}{3} \, b^{2} x^{3} + 2 \, a b x - \frac{a^{2}}{x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((b*x + a/x)^2,x, algorithm="maxima")

[Out]

1/3*b^2*x^3 + 2*a*b*x - a^2/x

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Fricas [A]  time = 0.213412, size = 34, normalized size = 1.42 \[ \frac{b^{2} x^{4} + 6 \, a b x^{2} - 3 \, a^{2}}{3 \, x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((b*x + a/x)^2,x, algorithm="fricas")

[Out]

1/3*(b^2*x^4 + 6*a*b*x^2 - 3*a^2)/x

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Sympy [A]  time = 1.01392, size = 19, normalized size = 0.79 \[ - \frac{a^{2}}{x} + 2 a b x + \frac{b^{2} x^{3}}{3} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((a/x+b*x)**2,x)

[Out]

-a**2/x + 2*a*b*x + b**2*x**3/3

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GIAC/XCAS [A]  time = 0.219116, size = 30, normalized size = 1.25 \[ \frac{1}{3} \, b^{2} x^{3} + 2 \, a b x - \frac{a^{2}}{x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((b*x + a/x)^2,x, algorithm="giac")

[Out]

1/3*b^2*x^3 + 2*a*b*x - a^2/x