Please let me know how you got this answer so I can remember how to determine what it is in the future (I am timed so I could use some help as soon as possible).
Quadratic trinomial is correct
Quadratic = 2nd degree polynomial
Trinomial = 3 terms [ tri = 3 ]
Quartic trinomial [ 4th degree polynomial with three terms]
Ex : x^4 + 3x^2 + 1
Cubic trinomial [ 3rd degree polynomial with three terms ]
Ex : x^3 + 2x - 8
Cubic binomial [ 3rd degree polynomial with two terms ] [ bi = 2]
Ex : x^3 - 8