Q. 3

# Classify the following polynomials as monomials, binomials and trinomials:3x2, 3x + 2, x2 – 4x + 2, x5 – 7, x2 + 3xy + y2,s2 + 3st – 2t2, xy + yz + zx, a2b + b2c, 2l + 2m

3x2

Expression that contains only one term is called a monomial.

The above question has only one term i.e. 3 , so it is monomial.

3x + 2

Expression that contains two terms is called a binomial.

The above question has two terms i.e. 3x and + 2 , so it is binomial.

x2 – 4x + 2

Expression that contains three terms is called a trinomial.

The above question has 3 terms i.e. , -4x and + 2, so it is trinomial.

x5 – 7

Expression that contains two terms is called a binomial.

The above question has two terms i.e. and -7, so it is a binomial.

x2 + 3xy + y2

Expression that contains three terms is called a trinomial.

The above question has 3 terms i.e. , + 3xy and , so it is trinomial.

s2 + 3st – 2t2

Expression that contains three terms is called a trinomial.

The above question has 3 terms i.e. , + 3st and - , so it is trinomial.

xy + yz + zx

Expression that contains three terms is called a trinomial.

The above question has 3 terms i.e. xy, + yz and + zx, so it is trinomial.

a2b + b2c

Expression that contains two terms is called a binomial.

The above question has 2 terms i.e. and + , so it is a binomial.

2l + 2m

Expression that contains two terms is called a binomial.

The above question has 2 terms i.e. 2l and + 2m, so it is a binomial.

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