Integrand size = 14, antiderivative size = 149 \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=\frac {5 \left (b^2-4 a c\right )^2 (b+2 c x) \sqrt {a+b x+c x^2}}{512 c^3}-\frac {5 \left (b^2-4 a c\right ) (b+2 c x) \left (a+b x+c x^2\right )^{3/2}}{192 c^2}+\frac {(b+2 c x) \left (a+b x+c x^2\right )^{5/2}}{12 c}-\frac {5 \left (b^2-4 a c\right )^3 \text {arctanh}\left (\frac {b+2 c x}{2 \sqrt {c} \sqrt {a+b x+c x^2}}\right )}{1024 c^{7/2}} \]
[Out]
Time = 0.03 (sec) , antiderivative size = 149, normalized size of antiderivative = 1.00, number of steps used = 5, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {626, 635, 212} \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=-\frac {5 \left (b^2-4 a c\right )^3 \text {arctanh}\left (\frac {b+2 c x}{2 \sqrt {c} \sqrt {a+b x+c x^2}}\right )}{1024 c^{7/2}}+\frac {5 \left (b^2-4 a c\right )^2 (b+2 c x) \sqrt {a+b x+c x^2}}{512 c^3}-\frac {5 \left (b^2-4 a c\right ) (b+2 c x) \left (a+b x+c x^2\right )^{3/2}}{192 c^2}+\frac {(b+2 c x) \left (a+b x+c x^2\right )^{5/2}}{12 c} \]
[In]
[Out]
Rule 212
Rule 626
Rule 635
Rubi steps \begin{align*} \text {integral}& = \frac {(b+2 c x) \left (a+b x+c x^2\right )^{5/2}}{12 c}-\frac {\left (5 \left (b^2-4 a c\right )\right ) \int \left (a+b x+c x^2\right )^{3/2} \, dx}{24 c} \\ & = -\frac {5 \left (b^2-4 a c\right ) (b+2 c x) \left (a+b x+c x^2\right )^{3/2}}{192 c^2}+\frac {(b+2 c x) \left (a+b x+c x^2\right )^{5/2}}{12 c}+\frac {\left (5 \left (b^2-4 a c\right )^2\right ) \int \sqrt {a+b x+c x^2} \, dx}{128 c^2} \\ & = \frac {5 \left (b^2-4 a c\right )^2 (b+2 c x) \sqrt {a+b x+c x^2}}{512 c^3}-\frac {5 \left (b^2-4 a c\right ) (b+2 c x) \left (a+b x+c x^2\right )^{3/2}}{192 c^2}+\frac {(b+2 c x) \left (a+b x+c x^2\right )^{5/2}}{12 c}-\frac {\left (5 \left (b^2-4 a c\right )^3\right ) \int \frac {1}{\sqrt {a+b x+c x^2}} \, dx}{1024 c^3} \\ & = \frac {5 \left (b^2-4 a c\right )^2 (b+2 c x) \sqrt {a+b x+c x^2}}{512 c^3}-\frac {5 \left (b^2-4 a c\right ) (b+2 c x) \left (a+b x+c x^2\right )^{3/2}}{192 c^2}+\frac {(b+2 c x) \left (a+b x+c x^2\right )^{5/2}}{12 c}-\frac {\left (5 \left (b^2-4 a c\right )^3\right ) \text {Subst}\left (\int \frac {1}{4 c-x^2} \, dx,x,\frac {b+2 c x}{\sqrt {a+b x+c x^2}}\right )}{512 c^3} \\ & = \frac {5 \left (b^2-4 a c\right )^2 (b+2 c x) \sqrt {a+b x+c x^2}}{512 c^3}-\frac {5 \left (b^2-4 a c\right ) (b+2 c x) \left (a+b x+c x^2\right )^{3/2}}{192 c^2}+\frac {(b+2 c x) \left (a+b x+c x^2\right )^{5/2}}{12 c}-\frac {5 \left (b^2-4 a c\right )^3 \tanh ^{-1}\left (\frac {b+2 c x}{2 \sqrt {c} \sqrt {a+b x+c x^2}}\right )}{1024 c^{7/2}} \\ \end{align*}
Time = 1.33 (sec) , antiderivative size = 150, normalized size of antiderivative = 1.01 \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=\frac {\sqrt {c} (b+2 c x) \sqrt {a+x (b+c x)} \left (15 b^4-40 b^3 c x+32 b c^2 x \left (13 a+8 c x^2\right )+8 b^2 c \left (-20 a+11 c x^2\right )+16 c^2 \left (33 a^2+26 a c x^2+8 c^2 x^4\right )\right )-15 \left (b^2-4 a c\right )^3 \text {arctanh}\left (\frac {\sqrt {c} x}{-\sqrt {a}+\sqrt {a+x (b+c x)}}\right )}{1536 c^{7/2}} \]
[In]
[Out]
Time = 0.32 (sec) , antiderivative size = 143, normalized size of antiderivative = 0.96
method | result | size |
default | \(\frac {\left (2 c x +b \right ) \left (c \,x^{2}+b x +a \right )^{\frac {5}{2}}}{12 c}+\frac {5 \left (4 a c -b^{2}\right ) \left (\frac {\left (2 c x +b \right ) \left (c \,x^{2}+b x +a \right )^{\frac {3}{2}}}{8 c}+\frac {3 \left (4 a c -b^{2}\right ) \left (\frac {\left (2 c x +b \right ) \sqrt {c \,x^{2}+b x +a}}{4 c}+\frac {\left (4 a c -b^{2}\right ) \ln \left (\frac {\frac {b}{2}+c x}{\sqrt {c}}+\sqrt {c \,x^{2}+b x +a}\right )}{8 c^{\frac {3}{2}}}\right )}{16 c}\right )}{24 c}\) | \(143\) |
risch | \(\frac {\left (256 c^{5} x^{5}+640 b \,c^{4} x^{4}+832 a \,c^{4} x^{3}+432 b^{2} c^{3} x^{3}+1248 a b \,c^{3} x^{2}+8 b^{3} c^{2} x^{2}+1056 a^{2} c^{3} x +96 a \,b^{2} c^{2} x -10 b^{4} c x +528 a^{2} b \,c^{2}-160 a \,b^{3} c +15 b^{5}\right ) \sqrt {c \,x^{2}+b x +a}}{1536 c^{3}}+\frac {5 \left (64 a^{3} c^{3}-48 a^{2} b^{2} c^{2}+12 a \,b^{4} c -b^{6}\right ) \ln \left (\frac {\frac {b}{2}+c x}{\sqrt {c}}+\sqrt {c \,x^{2}+b x +a}\right )}{1024 c^{\frac {7}{2}}}\) | \(187\) |
[In]
[Out]
none
Time = 0.38 (sec) , antiderivative size = 425, normalized size of antiderivative = 2.85 \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=\left [-\frac {15 \, {\left (b^{6} - 12 \, a b^{4} c + 48 \, a^{2} b^{2} c^{2} - 64 \, a^{3} c^{3}\right )} \sqrt {c} \log \left (-8 \, c^{2} x^{2} - 8 \, b c x - b^{2} - 4 \, \sqrt {c x^{2} + b x + a} {\left (2 \, c x + b\right )} \sqrt {c} - 4 \, a c\right ) - 4 \, {\left (256 \, c^{6} x^{5} + 640 \, b c^{5} x^{4} + 15 \, b^{5} c - 160 \, a b^{3} c^{2} + 528 \, a^{2} b c^{3} + 16 \, {\left (27 \, b^{2} c^{4} + 52 \, a c^{5}\right )} x^{3} + 8 \, {\left (b^{3} c^{3} + 156 \, a b c^{4}\right )} x^{2} - 2 \, {\left (5 \, b^{4} c^{2} - 48 \, a b^{2} c^{3} - 528 \, a^{2} c^{4}\right )} x\right )} \sqrt {c x^{2} + b x + a}}{6144 \, c^{4}}, \frac {15 \, {\left (b^{6} - 12 \, a b^{4} c + 48 \, a^{2} b^{2} c^{2} - 64 \, a^{3} c^{3}\right )} \sqrt {-c} \arctan \left (\frac {\sqrt {c x^{2} + b x + a} {\left (2 \, c x + b\right )} \sqrt {-c}}{2 \, {\left (c^{2} x^{2} + b c x + a c\right )}}\right ) + 2 \, {\left (256 \, c^{6} x^{5} + 640 \, b c^{5} x^{4} + 15 \, b^{5} c - 160 \, a b^{3} c^{2} + 528 \, a^{2} b c^{3} + 16 \, {\left (27 \, b^{2} c^{4} + 52 \, a c^{5}\right )} x^{3} + 8 \, {\left (b^{3} c^{3} + 156 \, a b c^{4}\right )} x^{2} - 2 \, {\left (5 \, b^{4} c^{2} - 48 \, a b^{2} c^{3} - 528 \, a^{2} c^{4}\right )} x\right )} \sqrt {c x^{2} + b x + a}}{3072 \, c^{4}}\right ] \]
[In]
[Out]
Time = 1.39 (sec) , antiderivative size = 1732, normalized size of antiderivative = 11.62 \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=\text {Too large to display} \]
[In]
[Out]
Exception generated. \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=\text {Exception raised: ValueError} \]
[In]
[Out]
none
Time = 0.28 (sec) , antiderivative size = 206, normalized size of antiderivative = 1.38 \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=\frac {1}{1536} \, \sqrt {c x^{2} + b x + a} {\left (2 \, {\left (4 \, {\left (2 \, {\left (8 \, {\left (2 \, c^{2} x + 5 \, b c\right )} x + \frac {27 \, b^{2} c^{5} + 52 \, a c^{6}}{c^{5}}\right )} x + \frac {b^{3} c^{4} + 156 \, a b c^{5}}{c^{5}}\right )} x - \frac {5 \, b^{4} c^{3} - 48 \, a b^{2} c^{4} - 528 \, a^{2} c^{5}}{c^{5}}\right )} x + \frac {15 \, b^{5} c^{2} - 160 \, a b^{3} c^{3} + 528 \, a^{2} b c^{4}}{c^{5}}\right )} + \frac {5 \, {\left (b^{6} - 12 \, a b^{4} c + 48 \, a^{2} b^{2} c^{2} - 64 \, a^{3} c^{3}\right )} \log \left ({\left | 2 \, {\left (\sqrt {c} x - \sqrt {c x^{2} + b x + a}\right )} \sqrt {c} + b \right |}\right )}{1024 \, c^{\frac {7}{2}}} \]
[In]
[Out]
Time = 10.09 (sec) , antiderivative size = 143, normalized size of antiderivative = 0.96 \[ \int \left (a+b x+c x^2\right )^{5/2} \, dx=\frac {\left (\frac {b}{2}+c\,x\right )\,{\left (c\,x^2+b\,x+a\right )}^{5/2}}{6\,c}+\frac {\left (\frac {\left (\left (\frac {x}{2}+\frac {b}{4\,c}\right )\,\sqrt {c\,x^2+b\,x+a}+\frac {\ln \left (\frac {\frac {b}{2}+c\,x}{\sqrt {c}}+\sqrt {c\,x^2+b\,x+a}\right )\,\left (a\,c-\frac {b^2}{4}\right )}{2\,c^{3/2}}\right )\,\left (3\,a\,c-\frac {3\,b^2}{4}\right )}{4\,c}+\frac {\left (\frac {b}{2}+c\,x\right )\,{\left (c\,x^2+b\,x+a\right )}^{3/2}}{4\,c}\right )\,\left (5\,a\,c-\frac {5\,b^2}{4}\right )}{6\,c} \]
[In]
[Out]