Question

Which of the following is/are monomial(s) in one variable?

• A. 2xy
• B. 3x + pq - pq
• C. 5
• D. 3x + y

Answer 1

The correct option is B

3x + pq - pq

An algebraic expression which consists of only one non-zero term is called a monomial. Examples of monomials are as follows:

a) 2xy is a monomial, but it has 2 variables, 'x' and 'y'
b) 3x + pq -pq is nothing but 3x, which is a monomial, with only one variable, that is 'x'.
c) 5 is a constant
d) 3x +y is a binomial, as it has two terms

So, according to the given question, 3x+ pq - pq = 3x, is a monomial in one variable.