3.68 \(\int (a+b x)^3 \, dx\)

Optimal. Leaf size=14 \[ \frac{(a+b x)^4}{4 b} \]

[Out]

(a + b*x)^4/(4*b)

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Rubi [A]  time = 0.0016024, antiderivative size = 14, normalized size of antiderivative = 1., number of steps used = 1, number of rules used = 1, integrand size = 7, \(\frac{\text{number of rules}}{\text{integrand size}}\) = 0.143, Rules used = {32} \[ \frac{(a+b x)^4}{4 b} \]

Antiderivative was successfully verified.

[In]

Int[(a + b*x)^3,x]

[Out]

(a + b*x)^4/(4*b)

Rule 32

Int[((a_.) + (b_.)*(x_))^(m_), x_Symbol] :> Simp[(a + b*x)^(m + 1)/(b*(m + 1)), x] /; FreeQ[{a, b, m}, x] && N
eQ[m, -1]

Rubi steps

\begin{align*} \int (a+b x)^3 \, dx &=\frac{(a+b x)^4}{4 b}\\ \end{align*}

Mathematica [A]  time = 0.0012879, size = 14, normalized size = 1. \[ \frac{(a+b x)^4}{4 b} \]

Antiderivative was successfully verified.

[In]

Integrate[(a + b*x)^3,x]

[Out]

(a + b*x)^4/(4*b)

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Maple [A]  time = 0., size = 13, normalized size = 0.9 \begin{align*}{\frac{ \left ( bx+a \right ) ^{4}}{4\,b}} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int((b*x+a)^3,x)

[Out]

1/4*(b*x+a)^4/b

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Maxima [B]  time = 1.0509, size = 42, normalized size = 3. \begin{align*} \frac{1}{4} \, b^{3} x^{4} + a b^{2} x^{3} + \frac{3}{2} \, a^{2} b x^{2} + a^{3} x \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

1/4*b^3*x^4 + a*b^2*x^3 + 3/2*a^2*b*x^2 + a^3*x

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Fricas [B]  time = 1.33451, size = 66, normalized size = 4.71 \begin{align*} \frac{1}{4} x^{4} b^{3} + x^{3} b^{2} a + \frac{3}{2} x^{2} b a^{2} + x a^{3} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

1/4*x^4*b^3 + x^3*b^2*a + 3/2*x^2*b*a^2 + x*a^3

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Sympy [B]  time = 0.069013, size = 32, normalized size = 2.29 \begin{align*} a^{3} x + \frac{3 a^{2} b x^{2}}{2} + a b^{2} x^{3} + \frac{b^{3} x^{4}}{4} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate((b*x+a)**3,x)

[Out]

a**3*x + 3*a**2*b*x**2/2 + a*b**2*x**3 + b**3*x**4/4

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Giac [A]  time = 1.16738, size = 16, normalized size = 1.14 \begin{align*} \frac{{\left (b x + a\right )}^{4}}{4 \, b} \end{align*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

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

[Out]

1/4*(b*x + a)^4/b