Question

Question 7

Which of the following is a binomial?
a) $7\times a+a$
b) $6a^2+7b+2c$
c) $4a\times 3b\times 2c$
d) $6(a^2+b)$

Answer 1

d) $6(a^2+b)=6a^2+6b$
$\to$Binomials are algebraic expressions consisting of two unlike terms.
a) $7\times a+a=7a+a=8a$ [monomial]
b) $6a^2+7b+2c$ [trinomial]
c) $4a\times 3b\times 2c=24\times abc$ [monomial]
d) $6(a^2+b)=6a^2+6b$ [binomial]