Question

Identify the monomials, binomials and trinomials in the following:
(i) −2xyz
(ii) 5 + 7x³y³z³
(iii) −5x³
(iv) a + b − 2c
(v) xy + yz − zx
(vi) x⁵
(vii) ax³ + bx² + cx + d
(viii) −14
(ix) 2x + 1

Answer 1

The expressions given in (i), (iii), (vi) and (viii) contain only one term. So, each one of them is monomial.
The expressions given in (ii) and (ix) contain two terms. So, both of them are binomial.
The expressions given in (iv) and (v) contain three terms. So, both of them are trinomial.
The expression given in (vii) contains four terms. So, it does not represents any of the given types.