Integrand size = 14, antiderivative size = 201 \[ \int \sqrt [4]{a+b x+c x^2} \, dx=\frac {(b+2 c x) \sqrt [4]{a+b x+c x^2}}{3 c}-\frac {\left (b^2-4 a c\right )^{5/4} \sqrt {\frac {(b+2 c x)^2}{\left (b^2-4 a c\right ) \left (1+\frac {2 \sqrt {c} \sqrt {a+b x+c x^2}}{\sqrt {b^2-4 a c}}\right )^2}} \left (1+\frac {2 \sqrt {c} \sqrt {a+b x+c x^2}}{\sqrt {b^2-4 a c}}\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt {2} \sqrt [4]{c} \sqrt [4]{a+b x+c x^2}}{\sqrt [4]{b^2-4 a c}}\right ),\frac {1}{2}\right )}{6 \sqrt {2} c^{5/4} (b+2 c x)} \]
[Out]
Time = 0.09 (sec) , antiderivative size = 201, normalized size of antiderivative = 1.00, number of steps used = 3, number of rules used = 3, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.214, Rules used = {626, 637, 226} \[ \int \sqrt [4]{a+b x+c x^2} \, dx=\frac {(b+2 c x) \sqrt [4]{a+b x+c x^2}}{3 c}-\frac {\left (b^2-4 a c\right )^{5/4} \sqrt {\frac {(b+2 c x)^2}{\left (b^2-4 a c\right ) \left (\frac {2 \sqrt {c} \sqrt {a+b x+c x^2}}{\sqrt {b^2-4 a c}}+1\right )^2}} \left (\frac {2 \sqrt {c} \sqrt {a+b x+c x^2}}{\sqrt {b^2-4 a c}}+1\right ) \operatorname {EllipticF}\left (2 \arctan \left (\frac {\sqrt {2} \sqrt [4]{c} \sqrt [4]{c x^2+b x+a}}{\sqrt [4]{b^2-4 a c}}\right ),\frac {1}{2}\right )}{6 \sqrt {2} c^{5/4} (b+2 c x)} \]
[In]
[Out]
Rule 226
Rule 626
Rule 637
Rubi steps \begin{align*} \text {integral}& = \frac {(b+2 c x) \sqrt [4]{a+b x+c x^2}}{3 c}-\frac {\left (b^2-4 a c\right ) \int \frac {1}{\left (a+b x+c x^2\right )^{3/4}} \, dx}{12 c} \\ & = \frac {(b+2 c x) \sqrt [4]{a+b x+c x^2}}{3 c}-\frac {\left (\left (b^2-4 a c\right ) \sqrt {(b+2 c x)^2}\right ) \text {Subst}\left (\int \frac {1}{\sqrt {b^2-4 a c+4 c x^4}} \, dx,x,\sqrt [4]{a+b x+c x^2}\right )}{3 c (b+2 c x)} \\ & = \frac {(b+2 c x) \sqrt [4]{a+b x+c x^2}}{3 c}-\frac {\left (b^2-4 a c\right )^{5/4} \sqrt {\frac {(b+2 c x)^2}{\left (b^2-4 a c\right ) \left (1+\frac {2 \sqrt {c} \sqrt {a+b x+c x^2}}{\sqrt {b^2-4 a c}}\right )^2}} \left (1+\frac {2 \sqrt {c} \sqrt {a+b x+c x^2}}{\sqrt {b^2-4 a c}}\right ) F\left (2 \tan ^{-1}\left (\frac {\sqrt {2} \sqrt [4]{c} \sqrt [4]{a+b x+c x^2}}{\sqrt [4]{b^2-4 a c}}\right )|\frac {1}{2}\right )}{6 \sqrt {2} c^{5/4} (b+2 c x)} \\ \end{align*}
Time = 10.17 (sec) , antiderivative size = 100, normalized size of antiderivative = 0.50 \[ \int \sqrt [4]{a+b x+c x^2} \, dx=\frac {\sqrt [4]{a+x (b+c x)} \left (2 (b+2 c x)+\frac {\sqrt {2} \sqrt {b^2-4 a c} \operatorname {EllipticF}\left (\frac {1}{2} \arcsin \left (\frac {b+2 c x}{\sqrt {b^2-4 a c}}\right ),2\right )}{\sqrt [4]{\frac {c (a+x (b+c x))}{-b^2+4 a c}}}\right )}{6 c} \]
[In]
[Out]
\[\int \left (c \,x^{2}+b x +a \right )^{\frac {1}{4}}d x\]
[In]
[Out]
\[ \int \sqrt [4]{a+b x+c x^2} \, dx=\int { {\left (c x^{2} + b x + a\right )}^{\frac {1}{4}} \,d x } \]
[In]
[Out]
\[ \int \sqrt [4]{a+b x+c x^2} \, dx=\int \sqrt [4]{a + b x + c x^{2}}\, dx \]
[In]
[Out]
\[ \int \sqrt [4]{a+b x+c x^2} \, dx=\int { {\left (c x^{2} + b x + a\right )}^{\frac {1}{4}} \,d x } \]
[In]
[Out]
\[ \int \sqrt [4]{a+b x+c x^2} \, dx=\int { {\left (c x^{2} + b x + a\right )}^{\frac {1}{4}} \,d x } \]
[In]
[Out]
Timed out. \[ \int \sqrt [4]{a+b x+c x^2} \, dx=\int {\left (c\,x^2+b\,x+a\right )}^{1/4} \,d x \]
[In]
[Out]