You are helping Bobby find the length and width of his garden. He knows that the area of the garden is x^2+8x+15 The length of his garden is ( x + 5 ) square feet.

a) what is the width of the garden? Explain how you came to this conclusion and what method you used (algebraic tiles, the x method, box method, etc. )

b) if x is 3 feet what would the area of the garden be? Show your work.