Christion and Jessica want to build a pool in their backyard. However, they also have dogs, so
they do not want the pool to take up all of the backyard. Christion is wondering how much room
the dogs will have to run while Jessica is concerned about the size of the pool. They know that
the area of their rectangular yard is represented by the equation f60) = 3r - 14x - 5. The area
of the pool can be represented by the equation 10) = (x-4) (2x + 7).
What is the area of the grassy space where the dogs can run?