Question

Which of the following is an irreducible expression?

• A. xy
• B. 2
• C. 4p + 3
• D. 6y

Answer 1

The correct option is C

4p + 3

$xy=x\times y$. So, x and y are the factors.
2$a^2=2\times a\times a$.

2, $a$, $a^2$ are the factors.
4p + 3 cannot be factorized.
$6y=6\times y$, 6 and y are the factors.
Since 4p + 3 can't be reduced further, it is an irreducible expression.