Question

A rectangular plot of land that has an area of 1200 sq. ft, will hold a rectangular garden whose length is 8' more than twice the width, and will be bordered by a 3' wide sidewalk for pedestrians. Write a function that describes the area of the garden with walkway. What will the dimensions of the garden area be?

Answer 1

w = width of garden

a = (w + 3 + 3) (2 w + 8 + 3 + 3) = (w + 6) (2 w + 14)
... = 2 (w^2 + 13 w + 42) = 1200

solve for w ... w^2 + 13 w - 558 = 0

Answer 2

Thank you, how'd you get -558 though?

Answer 3

Oh nevermind, I figured it out!