What are the values of a, b, and c in the quadratic equation 0 =1/2x² - 3x - 2?
a= 1/2, b = 3, c = 2
a = 1/2, b= -3, c= -2
a = 1/2, b= 3, c= -2
a= 1/2, b= -3, c= 2