Phillip is designing a deck, where the length of the deck, x, is at least 8 feet (ft). He wants the width to be 4 ft less than the length. The deck will have a bench and a planter, and the remaining area of the deck will be painted. The dimensions for each are shown in the diagram.
Let A represent the painted area, in square feet, of the deck.
Click on the blank to enter an expression in terms of x that completes the equation for A.