Malament!

Per resoldre aquest problema s'han d'utlitzar les següents equacions i passos: When \(a \ne 0\), there are two solutions to \(ax^2 + bx + c = 0\) and they are \[x = {-b \pm \sqrt{b^2-4ac} \over 2a}.\]

\begin{align} ΣF_x=0 =&\cssId{Step1}{a_i=G\sum_{j{\neq}i}m_j\frac{r_j-r_i}{|r_j-r_i|^3}~}\\[3px] &\cssId{Step2}{v_i=v_i+\frac{\Delta t}{2}*a_i}\\[3px] &\cssId{Step3}{F_{Cx}= -F_A -F_B * cos(α)}\\[3px] \end{align}