Polyethylene glycol when attached to other proteins allows a slow release of the carried protein. This means a longer acting effect of protein.
... get <math>x=\frac{-b}{2a}\pm\frac{\sqrt{b^2-4ac}}{2a}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}.</math> Generalizations The formula and its proof remain ...