1) Writing the equation, and simplifying it
[tex]\begin{gathered} 28y^2-23y\text{ +}\frac{4}{28y^3}+19y^2-20y \\ 47y^2\text{ -43y+}\frac{1}{7}y^{-3} \end{gathered}[/tex]Combining like terms and simplifying it the most. Writing from the greatest coefficient to the least.
