angelinabriceno34 angelinabriceno34 26-10-2022 Mathematics contestada Which of these are quadratic function(s)? (Select all that apply). A. y(y + 4) - y = 6 B. (3x + 2) + (6x - 1) = 0 C. 4b(b) = 0 D. 3a - 7 = 2(7a - 3)