Question 433961
If 4i is a zero, then so is -4i.
The constant term is equal to -(-3)(4i)(-4i) = -48i*i = 48.
The coefficient of x is (-3)(4i) + (-3)(-4i) + (4i)(-4i) = -16i*i = 16
The coefficient of x^2 is -(-3 + 4i + (-4i)) = 3
Therefore the answer is letter d.