\int \frac { x ^ { 3 } } { x ^ { 2 } + y } d x d x
Evaluate
dx\times \frac{-y\ln(|x^{2}+y|)+x^{2}}{2}+Сdx
Differentiate w.r.t. x
\frac{d\left(-yx^{2}\ln(|x^{2}+y|)-y^{2}\ln(|x^{2}+y|)+yx^{2}+3x^{4}\right)}{2\left(x^{2}+y\right)}+\frac{С\left(dx^{2}+dy\right)}{x^{2}+y}
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