Let f (x) = ax ^ 2 + BX + C, if 6A + 2B + C = 0, f (1) times f (3) > 0, if a = 0, find the value of (2)

Let f (x) = ax ^ 2 + BX + C, if 6A + 2B + C = 0, f (1) times f (3) > 0, if a = 0, find the value of (2)

If you ask for f (2), it should be 0
Substituting a = 0 into f (x) = BX + C, 2b + C = 0
Substituting the unknown x = 2, f (2) = 2B + C = 0