Question

Which of the following is an irreducible expression?

• A. $p^{2}q$
• B. $2a^2$
• C. $x+3$
• D. $6y$

Answer 1

The correct option is C $x+3$

$p^{2}q=p\times p\times q$

$2a^2=2\times a\times a$

$x+3\text{can not be factorized.}$

$6y=2\times 3\times y$

Since $x+3$ can not be reduced further, it is an irreducible expression.