Exact Equations & Substitutions · Superchallenge problem

Let $y(x)$ be the solution of $y' = \dfrac{y^2 + xy - x^2}{x^2}$ for $x > 0$ with $y(1) = 0$. Find the area of the region between the graph of $y$ and the $x$-axis for $0 < x < 1$.