Question

Which of the following is the irreducible factor form of 28xy?

• A. $28\times 1\times x\times y$
• B. $7\times 4\times x\times y$
• C. $14\times 2\times x\times y$
• D. $7\times 2\times 2\times x\times y$

Answer 1

The correct option is D $7\times 2\times 2\times x\times y$

$28\times x\times y=14\times 2\times x\times y$
$=7\times 2\times 2\times x\times y$
This is the irreducible factor form of 28xy.