Answer
Doesn't make sense.
Work Step by Step
We need to the extract the greatest possible power of a variable from all the terms,
and this is the SMALLEST power that appears in all the terms.
Example:
$2x^{4}+2x^{3}+3x^{2}$
Common to all terms is $x^{2}$, not $x^{4}.$
Doesn't make sense.
