Answer
$w^2+13w+42$.
Work Step by Step
The given expression is
$=(w+6)(w+7)$
Distribute $(w+7)$ to each term of $(w+6)$.
$=w(w+7)+6(w+7)$
Use distributive property.
$=w(w)+w(7)+6(w)+6(7)$
Multiply.
$=w^2+7w+6w+42$
Combine like terms.
$=w^2+13w+42$
Hence, the product is $w^2+13w+42$.
