Three polynomials are factored below, but some coefficients are missing. all of the misssing values of a, b, c, d, are integers. 1. x^2 - 6x + 8 = (ax + b) (cx + d)
2. 3x^3 - 6x^2 - 24 = 3x(ax + b) (cx + d)
3. 2x^2 - 2x - 24= (ax + b) (cx + d)

Fill in the table below with the missing values:
1. a = 1 b = -4 c = 1 d ?
2. a = 1 b ? c? d = 2
3. a ? b = -4 c = 2 d ?