Answer:

Explanation:
the area of the skateboard park is

We can factorize this expression, by finding two numers that when multiplied result in 56 and when they are added they result in 15
This two numbers are 7 and 8
7 * 8 = 56
7 + 8 = 15
and once we have this numbers we factorize the expression:

So, the possible dimensions of the park are (x + 7) by (x + 8)