Is 2x + 1 a monomial or a polynomial
The product of numbers or letters is called a monomial (a single number or letter is also a monomial), so we can get that 2x is a monomial, 1 is also a monomial, and the sum of two monomials is a polynomial
The product of numbers or letters is called a monomial (a single number or letter is also a monomial), so we can get that 2x is a monomial, 1 is also a monomial, and the sum of two monomials is a polynomial