Integrand size = 19, antiderivative size = 80 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=\frac {3}{8} b \sqrt {b x^2+c x^4}+\frac {\left (b x^2+c x^4\right )^{3/2}}{4 x^2}+\frac {3 b^2 \text {arctanh}\left (\frac {\sqrt {c} x^2}{\sqrt {b x^2+c x^4}}\right )}{8 \sqrt {c}} \]
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Time = 0.06 (sec) , antiderivative size = 80, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 4, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.211, Rules used = {2043, 678, 634, 212} \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=\frac {3 b^2 \text {arctanh}\left (\frac {\sqrt {c} x^2}{\sqrt {b x^2+c x^4}}\right )}{8 \sqrt {c}}+\frac {3}{8} b \sqrt {b x^2+c x^4}+\frac {\left (b x^2+c x^4\right )^{3/2}}{4 x^2} \]
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Rule 212
Rule 634
Rule 678
Rule 2043
Rubi steps \begin{align*} \text {integral}& = \frac {1}{2} \text {Subst}\left (\int \frac {\left (b x+c x^2\right )^{3/2}}{x^2} \, dx,x,x^2\right ) \\ & = \frac {\left (b x^2+c x^4\right )^{3/2}}{4 x^2}+\frac {1}{8} (3 b) \text {Subst}\left (\int \frac {\sqrt {b x+c x^2}}{x} \, dx,x,x^2\right ) \\ & = \frac {3}{8} b \sqrt {b x^2+c x^4}+\frac {\left (b x^2+c x^4\right )^{3/2}}{4 x^2}+\frac {1}{16} \left (3 b^2\right ) \text {Subst}\left (\int \frac {1}{\sqrt {b x+c x^2}} \, dx,x,x^2\right ) \\ & = \frac {3}{8} b \sqrt {b x^2+c x^4}+\frac {\left (b x^2+c x^4\right )^{3/2}}{4 x^2}+\frac {1}{8} \left (3 b^2\right ) \text {Subst}\left (\int \frac {1}{1-c x^2} \, dx,x,\frac {x^2}{\sqrt {b x^2+c x^4}}\right ) \\ & = \frac {3}{8} b \sqrt {b x^2+c x^4}+\frac {\left (b x^2+c x^4\right )^{3/2}}{4 x^2}+\frac {3 b^2 \tanh ^{-1}\left (\frac {\sqrt {c} x^2}{\sqrt {b x^2+c x^4}}\right )}{8 \sqrt {c}} \\ \end{align*}
Time = 0.08 (sec) , antiderivative size = 74, normalized size of antiderivative = 0.92 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=\frac {1}{8} \sqrt {x^2 \left (b+c x^2\right )} \left (5 b+2 c x^2-\frac {3 b^2 \log \left (-\sqrt {c} x+\sqrt {b+c x^2}\right )}{\sqrt {c} x \sqrt {b+c x^2}}\right ) \]
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Time = 0.10 (sec) , antiderivative size = 76, normalized size of antiderivative = 0.95
method | result | size |
risch | \(\frac {\left (2 c \,x^{2}+5 b \right ) \sqrt {x^{2} \left (c \,x^{2}+b \right )}}{8}+\frac {3 b^{2} \ln \left (x \sqrt {c}+\sqrt {c \,x^{2}+b}\right ) \sqrt {x^{2} \left (c \,x^{2}+b \right )}}{8 \sqrt {c}\, x \sqrt {c \,x^{2}+b}}\) | \(76\) |
default | \(\frac {\left (c \,x^{4}+b \,x^{2}\right )^{\frac {3}{2}} \left (2 x \left (c \,x^{2}+b \right )^{\frac {3}{2}} \sqrt {c}+3 \sqrt {c}\, \sqrt {c \,x^{2}+b}\, b x +3 \ln \left (x \sqrt {c}+\sqrt {c \,x^{2}+b}\right ) b^{2}\right )}{8 x^{3} \left (c \,x^{2}+b \right )^{\frac {3}{2}} \sqrt {c}}\) | \(84\) |
pseudoelliptic | \(\frac {4 c^{\frac {3}{2}} x^{2} \sqrt {x^{2} \left (c \,x^{2}+b \right )}+3 \ln \left (\frac {2 c \,x^{2}+2 \sqrt {x^{2} \left (c \,x^{2}+b \right )}\, \sqrt {c}+b}{\sqrt {c}}\right ) b^{2}-3 \ln \left (2\right ) b^{2}+10 b \sqrt {c}\, \sqrt {x^{2} \left (c \,x^{2}+b \right )}}{16 \sqrt {c}}\) | \(90\) |
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Time = 0.27 (sec) , antiderivative size = 145, normalized size of antiderivative = 1.81 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=\left [\frac {3 \, b^{2} \sqrt {c} \log \left (-2 \, c x^{2} - b - 2 \, \sqrt {c x^{4} + b x^{2}} \sqrt {c}\right ) + 2 \, \sqrt {c x^{4} + b x^{2}} {\left (2 \, c^{2} x^{2} + 5 \, b c\right )}}{16 \, c}, -\frac {3 \, b^{2} \sqrt {-c} \arctan \left (\frac {\sqrt {c x^{4} + b x^{2}} \sqrt {-c}}{c x^{2} + b}\right ) - \sqrt {c x^{4} + b x^{2}} {\left (2 \, c^{2} x^{2} + 5 \, b c\right )}}{8 \, c}\right ] \]
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\[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=\int \frac {\left (x^{2} \left (b + c x^{2}\right )\right )^{\frac {3}{2}}}{x^{3}}\, dx \]
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Time = 0.19 (sec) , antiderivative size = 70, normalized size of antiderivative = 0.88 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=\frac {3 \, b^{2} \log \left (2 \, c x^{2} + b + 2 \, \sqrt {c x^{4} + b x^{2}} \sqrt {c}\right )}{16 \, \sqrt {c}} + \frac {3}{8} \, \sqrt {c x^{4} + b x^{2}} b + \frac {{\left (c x^{4} + b x^{2}\right )}^{\frac {3}{2}}}{4 \, x^{2}} \]
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Time = 0.29 (sec) , antiderivative size = 68, normalized size of antiderivative = 0.85 \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=-\frac {3 \, b^{2} \log \left ({\left | -\sqrt {c} x + \sqrt {c x^{2} + b} \right |}\right ) \mathrm {sgn}\left (x\right )}{8 \, \sqrt {c}} + \frac {3 \, b^{2} \log \left ({\left | b \right |}\right ) \mathrm {sgn}\left (x\right )}{16 \, \sqrt {c}} + \frac {1}{8} \, {\left (2 \, c x^{2} \mathrm {sgn}\left (x\right ) + 5 \, b \mathrm {sgn}\left (x\right )\right )} \sqrt {c x^{2} + b} x \]
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Timed out. \[ \int \frac {\left (b x^2+c x^4\right )^{3/2}}{x^3} \, dx=\int \frac {{\left (c\,x^4+b\,x^2\right )}^{3/2}}{x^3} \,d x \]
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