Mark is solving the equation 4x2 = 12x - 9 using the quadratic formula.


Which values could he use for a, b and c?


Question 6 options:


A. a = 4, b = 9, c = -12



B. a = 4, b = -12, c = 9



C. a = 4, b = 12, c = -9



D. a = 4, b = -9, c = 12