Identify+and+classify+polynomials

1.What is a polynomial? a number problem broken into terms

2.What is a monomial? a number sentence with one term

3.What is a binomial? a number sentence with two terms ex. 2x²+2 4.What is a trinomial? a number sentence with three terms ex. 2x²+2x+2 5.How do you classify a polynomial? by the terms- seperated by addition or subtraction signs