Expand the following: \begin{align} Ss_2 = -\frac{\frac{F_b}{m}*v_0^2}{2*(\frac{F_b}{m}- g * sin α)^2} + \frac{g * v_0^2 * sin α}{2*(\frac{F_b}{m}- g*sinα)^2}+ \frac{v_0^2}{\frac{F_b}{m}- g*sinα} &= \cssId{Step1}{- \frac{v_0^2*(\frac{Fb_2}{m}- g*sinα)}{2*(\frac{Fb_2}{m}- g*sinα)^2}} \\[3px] &\cssId{Step2}{{} = -\frac{v_0^2}{2*(\frac{Fb_2}{m}-g*sinα)} + \frac{v_0^2}{\frac{Fb_2}{m} - g * sinα } } \\[3px] &\cssId{Step3}{{} = \frac{v_0^2}{2*(\frac{Fb_2}{m}-g*sinα)} } \\[3px] \end{align}