3.1173 \(\int \frac {b d+2 c d x}{(a+b x+c x^2)^2} \, dx\)

Optimal. Leaf size=15 \[ -\frac {d}{a+b x+c x^2} \]

[Out]

-d/(c*x^2+b*x+a)

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Rubi [A]  time = 0.01, antiderivative size = 15, normalized size of antiderivative = 1.00, number of steps used = 1, number of rules used = 1, integrand size = 22, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.045, Rules used = {629} \[ -\frac {d}{a+b x+c x^2} \]

Antiderivative was successfully verified.

[In]

Int[(b*d + 2*c*d*x)/(a + b*x + c*x^2)^2,x]

[Out]

-(d/(a + b*x + c*x^2))

Rule 629

Int[((d_) + (e_.)*(x_))*((a_.) + (b_.)*(x_) + (c_.)*(x_)^2)^(p_.), x_Symbol] :> Simp[(d*(a + b*x + c*x^2)^(p +
1))/(b*(p + 1)), x] /; FreeQ[{a, b, c, d, e, p}, x] && EqQ[2*c*d - b*e, 0] && NeQ[p, -1]

Rubi steps

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

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Mathematica [A]  time = 0.00, size = 14, normalized size = 0.93 \[ -\frac {d}{a+x (b+c x)} \]

Antiderivative was successfully verified.

[In]

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

[Out]

-(d/(a + x*(b + c*x)))

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fricas [A]  time = 1.08, size = 15, normalized size = 1.00 \[ -\frac {d}{c x^{2} + b x + a} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-d/(c*x^2 + b*x + a)

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giac [A]  time = 0.15, size = 22, normalized size = 1.47 \[ -\frac {d}{a + \frac {c d x^{2} + b d x}{d}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-d/(a + (c*d*x^2 + b*d*x)/d)

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maple [A]  time = 0.04, size = 16, normalized size = 1.07 \[ -\frac {d}{c \,x^{2}+b x +a} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((2*c*d*x+b*d)/(c*x^2+b*x+a)^2,x)

[Out]

-d/(c*x^2+b*x+a)

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maxima [A]  time = 1.36, size = 15, normalized size = 1.00 \[ -\frac {d}{c x^{2} + b x + a} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-d/(c*x^2 + b*x + a)

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mupad [B]  time = 0.42, size = 15, normalized size = 1.00 \[ -\frac {d}{c\,x^2+b\,x+a} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b*d + 2*c*d*x)/(a + b*x + c*x^2)^2,x)

[Out]

-d/(a + b*x + c*x^2)

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sympy [A]  time = 0.41, size = 12, normalized size = 0.80 \[ - \frac {d}{a + b x + c x^{2}} \]

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

-d/(a + b*x + c*x**2)

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