Evaluate the expression a3 - b / 4 for a = 3, b = 2, and c = 4. write in simplest form.

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle