It will be difficult to answer this question accurately without knowing "the expression below."
the degree of trinomial is the sum of the variables exponents
aX^2 + bX + c
monomial binomial trinomial polynomial
Trinomial
(2x - 5)(4x + 3)
(x - 6)(x + 4)
(7x + 5)(2x - 7)
(x + 5)(x - 8)
-(3x - 4)(x - 2)
-(x + 13)(x - 2)
(2x + 7)(5x - 4)