Answer
$(a+2)(a+12)$
Work Step by Step
The first term in each binomial must be a since $a^2$ has no coefficient.
The operation in each binomial must be addition since each term in the trinomial is positive.
$2+12=14$ and $2\times12=24$, so the other two terms are 2 and 12.
Therefore, we find $(a+2)(a+12)$.
