Answer:
Trinomial
Step-by-step explanation:
Classify the expression 7x3 + 2x2 − 9x as a monomial, binomial, trinomial, or polynomial.
[tex]7x^3 + 2x^2 - 9x[/tex]
An expression with an single term is a monomial , for example 3x^2
An expression with two terms is a binomial, for example 2x+5 has two terms 2x and 5
An expression with three terms is a trinomial . Our given expression has three terms [tex]7x^3, 2x^2 \ and \ -9x[/tex]
So it is a trinomial.
