Mark is solving the equation 4x^2 = 12x - 9 using the quadratic formula.
which values could he use for a, b and c?
a = 4, b = 12, c = -9
a = 4, b = -9, c = 12
a = 4, b = 9, c = -12
a = 4, b = -12, c = 9

    First, modify the equation such that it is in the format of ax^2+bx+c=0, and you do this by performing inverse operations to 12x and -9 on one side of the equation such that they are moved to the other side of the equation. The numbers that are in the places of a, b and c in the quadratic are the values that may be used for a, b and c in the quadratic formula.