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

Optimal. Leaf size=42 \[ -\frac{A \log (a+b x)}{a^2}+\frac{A \log (x)}{a^2}+\frac{A b-a B}{a b (a+b x)} \]

[Out]

(A*b - a*B)/(a*b*(a + b*x)) + (A*Log[x])/a^2 - (A*Log[a + b*x])/a^2

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Rubi [A]  time = 0.069173, antiderivative size = 42, normalized size of antiderivative = 1., number of steps used = 3, number of rules used = 2, integrand size = 27, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.074 \[ -\frac{A \log (a+b x)}{a^2}+\frac{A \log (x)}{a^2}+\frac{A b-a B}{a b (a+b x)} \]

Antiderivative was successfully verified.

[In]  Int[(A + B*x)/(x*(a^2 + 2*a*b*x + b^2*x^2)),x]

[Out]

(A*b - a*B)/(a*b*(a + b*x)) + (A*Log[x])/a^2 - (A*Log[a + b*x])/a^2

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Rubi in Sympy [A]  time = 24.3897, size = 34, normalized size = 0.81 \[ \frac{A \log{\left (x \right )}}{a^{2}} - \frac{A \log{\left (a + b x \right )}}{a^{2}} + \frac{A b - B a}{a b \left (a + b x\right )} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  rubi_integrate((B*x+A)/x/(b**2*x**2+2*a*b*x+a**2),x)

[Out]

A*log(x)/a**2 - A*log(a + b*x)/a**2 + (A*b - B*a)/(a*b*(a + b*x))

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Mathematica [A]  time = 0.0446626, size = 38, normalized size = 0.9 \[ \frac{\frac{a (A b-a B)}{b (a+b x)}-A \log (a+b x)+A \log (x)}{a^2} \]

Antiderivative was successfully verified.

[In]  Integrate[(A + B*x)/(x*(a^2 + 2*a*b*x + b^2*x^2)),x]

[Out]

((a*(A*b - a*B))/(b*(a + b*x)) + A*Log[x] - A*Log[a + b*x])/a^2

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Maple [A]  time = 0.011, size = 46, normalized size = 1.1 \[{\frac{A\ln \left ( x \right ) }{{a}^{2}}}+{\frac{A}{a \left ( bx+a \right ) }}-{\frac{B}{ \left ( bx+a \right ) b}}-{\frac{A\ln \left ( bx+a \right ) }{{a}^{2}}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  int((B*x+A)/x/(b^2*x^2+2*a*b*x+a^2),x)

[Out]

A*ln(x)/a^2+1/a/(b*x+a)*A-B/(b*x+a)/b-A*ln(b*x+a)/a^2

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Maxima [A]  time = 0.684455, size = 59, normalized size = 1.4 \[ -\frac{B a - A b}{a b^{2} x + a^{2} b} - \frac{A \log \left (b x + a\right )}{a^{2}} + \frac{A \log \left (x\right )}{a^{2}} \]

Verification of antiderivative is not currently implemented for this CAS.

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

[Out]

-(B*a - A*b)/(a*b^2*x + a^2*b) - A*log(b*x + a)/a^2 + A*log(x)/a^2

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Fricas [A]  time = 0.286285, size = 84, normalized size = 2. \[ -\frac{B a^{2} - A a b +{\left (A b^{2} x + A a b\right )} \log \left (b x + a\right ) -{\left (A b^{2} x + A a b\right )} \log \left (x\right )}{a^{2} b^{2} x + a^{3} b} \]

Verification of antiderivative is not currently implemented for this CAS.

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

[Out]

-(B*a^2 - A*a*b + (A*b^2*x + A*a*b)*log(b*x + a) - (A*b^2*x + A*a*b)*log(x))/(a^
2*b^2*x + a^3*b)

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Sympy [A]  time = 1.85834, size = 32, normalized size = 0.76 \[ \frac{A \left (\log{\left (x \right )} - \log{\left (\frac{a}{b} + x \right )}\right )}{a^{2}} - \frac{- A b + B a}{a^{2} b + a b^{2} x} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]  integrate((B*x+A)/x/(b**2*x**2+2*a*b*x+a**2),x)

[Out]

A*(log(x) - log(a/b + x))/a**2 - (-A*b + B*a)/(a**2*b + a*b**2*x)

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GIAC/XCAS [A]  time = 0.268958, size = 65, normalized size = 1.55 \[ -\frac{A{\rm ln}\left ({\left | b x + a \right |}\right )}{a^{2}} + \frac{A{\rm ln}\left ({\left | x \right |}\right )}{a^{2}} - \frac{B a^{2} - A a b}{{\left (b x + a\right )} a^{2} b} \]

Verification of antiderivative is not currently implemented for this CAS.

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

[Out]

-A*ln(abs(b*x + a))/a^2 + A*ln(abs(x))/a^2 - (B*a^2 - A*a*b)/((b*x + a)*a^2*b)