Integrand size = 22, antiderivative size = 112 \[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=\frac {2 c^2 \sqrt {a+b x}}{d^2 (b c-a d) \sqrt {c+d x}}+\frac {\sqrt {a+b x} \sqrt {c+d x}}{b d^2}-\frac {(3 b c+a d) \text {arctanh}\left (\frac {\sqrt {d} \sqrt {a+b x}}{\sqrt {b} \sqrt {c+d x}}\right )}{b^{3/2} d^{5/2}} \]
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Time = 0.07 (sec) , antiderivative size = 112, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 5, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.227, Rules used = {91, 81, 65, 223, 212} \[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=-\frac {(a d+3 b c) \text {arctanh}\left (\frac {\sqrt {d} \sqrt {a+b x}}{\sqrt {b} \sqrt {c+d x}}\right )}{b^{3/2} d^{5/2}}+\frac {2 c^2 \sqrt {a+b x}}{d^2 \sqrt {c+d x} (b c-a d)}+\frac {\sqrt {a+b x} \sqrt {c+d x}}{b d^2} \]
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Rule 65
Rule 81
Rule 91
Rule 212
Rule 223
Rubi steps \begin{align*} \text {integral}& = \frac {2 c^2 \sqrt {a+b x}}{d^2 (b c-a d) \sqrt {c+d x}}-\frac {2 \int \frac {\frac {1}{2} c (b c-a d)-\frac {1}{2} d (b c-a d) x}{\sqrt {a+b x} \sqrt {c+d x}} \, dx}{d^2 (b c-a d)} \\ & = \frac {2 c^2 \sqrt {a+b x}}{d^2 (b c-a d) \sqrt {c+d x}}+\frac {\sqrt {a+b x} \sqrt {c+d x}}{b d^2}-\frac {(3 b c+a d) \int \frac {1}{\sqrt {a+b x} \sqrt {c+d x}} \, dx}{2 b d^2} \\ & = \frac {2 c^2 \sqrt {a+b x}}{d^2 (b c-a d) \sqrt {c+d x}}+\frac {\sqrt {a+b x} \sqrt {c+d x}}{b d^2}-\frac {(3 b c+a d) \text {Subst}\left (\int \frac {1}{\sqrt {c-\frac {a d}{b}+\frac {d x^2}{b}}} \, dx,x,\sqrt {a+b x}\right )}{b^2 d^2} \\ & = \frac {2 c^2 \sqrt {a+b x}}{d^2 (b c-a d) \sqrt {c+d x}}+\frac {\sqrt {a+b x} \sqrt {c+d x}}{b d^2}-\frac {(3 b c+a d) \text {Subst}\left (\int \frac {1}{1-\frac {d x^2}{b}} \, dx,x,\frac {\sqrt {a+b x}}{\sqrt {c+d x}}\right )}{b^2 d^2} \\ & = \frac {2 c^2 \sqrt {a+b x}}{d^2 (b c-a d) \sqrt {c+d x}}+\frac {\sqrt {a+b x} \sqrt {c+d x}}{b d^2}-\frac {(3 b c+a d) \tanh ^{-1}\left (\frac {\sqrt {d} \sqrt {a+b x}}{\sqrt {b} \sqrt {c+d x}}\right )}{b^{3/2} d^{5/2}} \\ \end{align*}
Time = 0.26 (sec) , antiderivative size = 134, normalized size of antiderivative = 1.20 \[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=\frac {\sqrt {b} \sqrt {d} \sqrt {a+b x} (a d (c+d x)-b c (3 c+d x))+\left (3 b^2 c^2-2 a b c d-a^2 d^2\right ) \sqrt {c+d x} \text {arctanh}\left (\frac {\sqrt {d} \sqrt {a+b x}}{\sqrt {b} \sqrt {c+d x}}\right )}{b^{3/2} d^{5/2} (-b c+a d) \sqrt {c+d x}} \]
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Leaf count of result is larger than twice the leaf count of optimal. \(438\) vs. \(2(92)=184\).
Time = 0.58 (sec) , antiderivative size = 439, normalized size of antiderivative = 3.92
method | result | size |
default | \(-\frac {\sqrt {b x +a}\, \left (\ln \left (\frac {2 b d x +2 \sqrt {\left (b x +a \right ) \left (d x +c \right )}\, \sqrt {b d}+a d +b c}{2 \sqrt {b d}}\right ) a^{2} d^{3} x +2 \ln \left (\frac {2 b d x +2 \sqrt {\left (b x +a \right ) \left (d x +c \right )}\, \sqrt {b d}+a d +b c}{2 \sqrt {b d}}\right ) a b c \,d^{2} x -3 \ln \left (\frac {2 b d x +2 \sqrt {\left (b x +a \right ) \left (d x +c \right )}\, \sqrt {b d}+a d +b c}{2 \sqrt {b d}}\right ) b^{2} c^{2} d x +\ln \left (\frac {2 b d x +2 \sqrt {\left (b x +a \right ) \left (d x +c \right )}\, \sqrt {b d}+a d +b c}{2 \sqrt {b d}}\right ) a^{2} c \,d^{2}+2 \ln \left (\frac {2 b d x +2 \sqrt {\left (b x +a \right ) \left (d x +c \right )}\, \sqrt {b d}+a d +b c}{2 \sqrt {b d}}\right ) a b \,c^{2} d -3 \ln \left (\frac {2 b d x +2 \sqrt {\left (b x +a \right ) \left (d x +c \right )}\, \sqrt {b d}+a d +b c}{2 \sqrt {b d}}\right ) b^{2} c^{3}-2 a \,d^{2} x \sqrt {b d}\, \sqrt {\left (b x +a \right ) \left (d x +c \right )}+2 b c d x \sqrt {b d}\, \sqrt {\left (b x +a \right ) \left (d x +c \right )}-2 a c d \sqrt {b d}\, \sqrt {\left (b x +a \right ) \left (d x +c \right )}+6 b \,c^{2} \sqrt {b d}\, \sqrt {\left (b x +a \right ) \left (d x +c \right )}\right )}{2 \sqrt {b d}\, b \left (a d -b c \right ) \sqrt {\left (b x +a \right ) \left (d x +c \right )}\, d^{2} \sqrt {d x +c}}\) | \(439\) |
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Leaf count of result is larger than twice the leaf count of optimal. 227 vs. \(2 (92) = 184\).
Time = 0.27 (sec) , antiderivative size = 468, normalized size of antiderivative = 4.18 \[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=\left [\frac {{\left (3 \, b^{2} c^{3} - 2 \, a b c^{2} d - a^{2} c d^{2} + {\left (3 \, b^{2} c^{2} d - 2 \, a b c d^{2} - a^{2} d^{3}\right )} x\right )} \sqrt {b d} \log \left (8 \, b^{2} d^{2} x^{2} + b^{2} c^{2} + 6 \, a b c d + a^{2} d^{2} - 4 \, {\left (2 \, b d x + b c + a d\right )} \sqrt {b d} \sqrt {b x + a} \sqrt {d x + c} + 8 \, {\left (b^{2} c d + a b d^{2}\right )} x\right ) + 4 \, {\left (3 \, b^{2} c^{2} d - a b c d^{2} + {\left (b^{2} c d^{2} - a b d^{3}\right )} x\right )} \sqrt {b x + a} \sqrt {d x + c}}{4 \, {\left (b^{3} c^{2} d^{3} - a b^{2} c d^{4} + {\left (b^{3} c d^{4} - a b^{2} d^{5}\right )} x\right )}}, \frac {{\left (3 \, b^{2} c^{3} - 2 \, a b c^{2} d - a^{2} c d^{2} + {\left (3 \, b^{2} c^{2} d - 2 \, a b c d^{2} - a^{2} d^{3}\right )} x\right )} \sqrt {-b d} \arctan \left (\frac {{\left (2 \, b d x + b c + a d\right )} \sqrt {-b d} \sqrt {b x + a} \sqrt {d x + c}}{2 \, {\left (b^{2} d^{2} x^{2} + a b c d + {\left (b^{2} c d + a b d^{2}\right )} x\right )}}\right ) + 2 \, {\left (3 \, b^{2} c^{2} d - a b c d^{2} + {\left (b^{2} c d^{2} - a b d^{3}\right )} x\right )} \sqrt {b x + a} \sqrt {d x + c}}{2 \, {\left (b^{3} c^{2} d^{3} - a b^{2} c d^{4} + {\left (b^{3} c d^{4} - a b^{2} d^{5}\right )} x\right )}}\right ] \]
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\[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=\int \frac {x^{2}}{\sqrt {a + b x} \left (c + d x\right )^{\frac {3}{2}}}\, dx \]
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Exception generated. \[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=\text {Exception raised: ValueError} \]
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Leaf count of result is larger than twice the leaf count of optimal. 193 vs. \(2 (92) = 184\).
Time = 0.33 (sec) , antiderivative size = 193, normalized size of antiderivative = 1.72 \[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=\frac {\sqrt {b x + a} {\left (\frac {{\left (b^{3} c d^{2} - a b^{2} d^{3}\right )} {\left (b x + a\right )}}{b^{3} c d^{3} {\left | b \right |} - a b^{2} d^{4} {\left | b \right |}} + \frac {3 \, b^{4} c^{2} d - 2 \, a b^{3} c d^{2} + a^{2} b^{2} d^{3}}{b^{3} c d^{3} {\left | b \right |} - a b^{2} d^{4} {\left | b \right |}}\right )}}{\sqrt {b^{2} c + {\left (b x + a\right )} b d - a b d}} + \frac {{\left (3 \, b c + a d\right )} \log \left ({\left | -\sqrt {b d} \sqrt {b x + a} + \sqrt {b^{2} c + {\left (b x + a\right )} b d - a b d} \right |}\right )}{\sqrt {b d} d^{2} {\left | b \right |}} \]
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Timed out. \[ \int \frac {x^2}{\sqrt {a+b x} (c+d x)^{3/2}} \, dx=\int \frac {x^2}{\sqrt {a+b\,x}\,{\left (c+d\,x\right )}^{3/2}} \,d x \]
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