Question 1158335
General Solution for quadratic equation gives zeros:

{{{(3-sqrt(33))/4}}}  and  {{{(3+sqrt(33))/4}}}, each with multiplicity 1.



{{{y=2x^2-3x-3}}}, concave up, vertex a minimum point


{{{graph(400,400,-5,5,-5,5,2x^2-3x-3)}}}