Optimal. Leaf size=59 \[ -\frac {a x (a+b x)^{1+n}}{b^2 (1+n) \sqrt {c x^2}}+\frac {x (a+b x)^{2+n}}{b^2 (2+n) \sqrt {c x^2}} \]
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Rubi [A]
time = 0.01, antiderivative size = 59, normalized size of antiderivative = 1.00, number of steps
used = 3, number of rules used = 2, integrand size = 20, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.100, Rules used = {15, 45}
\begin {gather*} \frac {x (a+b x)^{n+2}}{b^2 (n+2) \sqrt {c x^2}}-\frac {a x (a+b x)^{n+1}}{b^2 (n+1) \sqrt {c x^2}} \end {gather*}
Antiderivative was successfully verified.
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Rule 15
Rule 45
Rubi steps
\begin {align*} \int \frac {x^2 (a+b x)^n}{\sqrt {c x^2}} \, dx &=\frac {x \int x (a+b x)^n \, dx}{\sqrt {c x^2}}\\ &=\frac {x \int \left (-\frac {a (a+b x)^n}{b}+\frac {(a+b x)^{1+n}}{b}\right ) \, dx}{\sqrt {c x^2}}\\ &=-\frac {a x (a+b x)^{1+n}}{b^2 (1+n) \sqrt {c x^2}}+\frac {x (a+b x)^{2+n}}{b^2 (2+n) \sqrt {c x^2}}\\ \end {align*}
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Mathematica [A]
time = 0.02, size = 43, normalized size = 0.73 \begin {gather*} \frac {x (a+b x)^{1+n} (-a+b (1+n) x)}{b^2 (1+n) (2+n) \sqrt {c x^2}} \end {gather*}
Antiderivative was successfully verified.
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Maple [A]
time = 0.14, size = 44, normalized size = 0.75
method | result | size |
gosper | \(-\frac {\left (b x +a \right )^{1+n} x \left (-b n x -b x +a \right )}{\sqrt {c \,x^{2}}\, b^{2} \left (n^{2}+3 n +2\right )}\) | \(44\) |
risch | \(-\frac {x \left (-b^{2} n \,x^{2}-a b n x -x^{2} b^{2}+a^{2}\right ) \left (b x +a \right )^{n}}{\sqrt {c \,x^{2}}\, b^{2} \left (2+n \right ) \left (1+n \right )}\) | \(58\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [A]
time = 0.29, size = 45, normalized size = 0.76 \begin {gather*} \frac {{\left (b^{2} {\left (n + 1\right )} x^{2} + a b n x - a^{2}\right )} {\left (b x + a\right )}^{n}}{{\left (n^{2} + 3 \, n + 2\right )} b^{2} \sqrt {c}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [A]
time = 0.92, size = 66, normalized size = 1.12 \begin {gather*} \frac {{\left (a b n x + {\left (b^{2} n + b^{2}\right )} x^{2} - a^{2}\right )} \sqrt {c x^{2}} {\left (b x + a\right )}^{n}}{{\left (b^{2} c n^{2} + 3 \, b^{2} c n + 2 \, b^{2} c\right )} x} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \begin {cases} \frac {a^{n} x^{3}}{2 \sqrt {c x^{2}}} & \text {for}\: b = 0 \\\int \frac {x^{2}}{\sqrt {c x^{2}} \left (a + b x\right )^{2}}\, dx & \text {for}\: n = -2 \\\int \frac {x^{2}}{\sqrt {c x^{2}} \left (a + b x\right )}\, dx & \text {for}\: n = -1 \\- \frac {a^{2} x \left (a + b x\right )^{n}}{b^{2} n^{2} \sqrt {c x^{2}} + 3 b^{2} n \sqrt {c x^{2}} + 2 b^{2} \sqrt {c x^{2}}} + \frac {a b n x^{2} \left (a + b x\right )^{n}}{b^{2} n^{2} \sqrt {c x^{2}} + 3 b^{2} n \sqrt {c x^{2}} + 2 b^{2} \sqrt {c x^{2}}} + \frac {b^{2} n x^{3} \left (a + b x\right )^{n}}{b^{2} n^{2} \sqrt {c x^{2}} + 3 b^{2} n \sqrt {c x^{2}} + 2 b^{2} \sqrt {c x^{2}}} + \frac {b^{2} x^{3} \left (a + b x\right )^{n}}{b^{2} n^{2} \sqrt {c x^{2}} + 3 b^{2} n \sqrt {c x^{2}} + 2 b^{2} \sqrt {c x^{2}}} & \text {otherwise} \end {cases} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [F(-2)]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Exception raised: TypeError} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 0.28, size = 71, normalized size = 1.20 \begin {gather*} \frac {{\left (a+b\,x\right )}^n\,\left (\frac {x^3\,\left (n+1\right )}{n^2+3\,n+2}-\frac {a^2\,x}{b^2\,\left (n^2+3\,n+2\right )}+\frac {a\,n\,x^2}{b\,\left (n^2+3\,n+2\right )}\right )}{\sqrt {c\,x^2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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