3.2.64 \(\int \frac {b+2 c x}{b x+c x^2} \, dx\) [164]

Optimal. Leaf size=10 \[ \log \left (b x+c x^2\right ) \]

[Out]

ln(c*x^2+b*x)

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Rubi [A]
time = 0.00, antiderivative size = 10, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 18, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.056, Rules used = {642} \begin {gather*} \log \left (b x+c x^2\right ) \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(b + 2*c*x)/(b*x + c*x^2),x]

[Out]

Log[b*x + c*x^2]

Rule 642

Int[((d_) + (e_.)*(x_))/((a_.) + (b_.)*(x_) + (c_.)*(x_)^2), x_Symbol] :> Simp[d*(Log[RemoveContent[a + b*x +
c*x^2, x]]/b), x] /; FreeQ[{a, b, c, d, e}, x] && EqQ[2*c*d - b*e, 0]

Rubi steps

\begin {align*} \int \frac {b+2 c x}{b x+c x^2} \, dx &=\log \left (b x+c x^2\right )\\ \end {align*}

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Mathematica [A]
time = 0.00, size = 9, normalized size = 0.90 \begin {gather*} \log (x)+\log (b+c x) \end {gather*}

Antiderivative was successfully verified.

[In]

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

[Out]

Log[x] + Log[b + c*x]

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Maple [A]
time = 0.19, size = 9, normalized size = 0.90

method	result	size
default	\(\ln \left (x \left (c x +b \right )\right )\)	\(9\)
norman	\(\ln \left (x \right )+\ln \left (c x +b \right )\)	\(10\)
derivativedivides	\(\ln \left (c \,x^{2}+b x \right )\)	\(11\)
risch	\(\ln \left (c \,x^{2}+b x \right )\)	\(11\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

ln(x*(c*x+b))

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Maxima [A]
time = 0.28, size = 10, normalized size = 1.00 \begin {gather*} \log \left (c x^{2} + b x\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

log(c*x^2 + b*x)

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Fricas [A]
time = 0.37, size = 10, normalized size = 1.00 \begin {gather*} \log \left (c x^{2} + b x\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

log(c*x^2 + b*x)

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Sympy [A]
time = 0.04, size = 8, normalized size = 0.80 \begin {gather*} \log {\left (b x + c x^{2} \right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

log(b*x + c*x**2)

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Giac [A]
time = 4.37, size = 11, normalized size = 1.10 \begin {gather*} \log \left ({\left | c x^{2} + b x \right |}\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

log(abs(c*x^2 + b*x))

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Mupad [B]
time = 0.05, size = 8, normalized size = 0.80 \begin {gather*} \ln \left (x\,\left (b+c\,x\right )\right ) \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b + 2*c*x)/(b*x + c*x^2),x)

[Out]

log(x*(b + c*x))

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