\((1-x)y' = y^2\) =\((1-x)\frac{dy}{dx} = y^2\)

\((1-x)dy = y^2 dx\)

\( \frac{(dx)}{(1-x)} = \frac{dy}{y^2}\)

\( \int{\frac{(dx)}{(1-x)} }= \int{\frac{dy}{y^2}}\)

\( -ln(1-x) - lnc = \frac{-1}{y}\)

\( (1-x) c=\frac{1}{y}\)

\( y(1-x) c=1\)