Question

The area of a rectangular fountain is x2 + 9x + 20 square feet. A 5-foot walkway is built around the fountain. Find the dimensions of the outside border of the walkway. The dimensions of the outside border of the walkway are _ feet and _ feet (fill in the _ s)

Answer 1

So, the dimensions of the outside border of the walkway are (x + 14) feet (x + 15) feet.