you are building a rectangular dog pen with an area of 90 ft^2. You want th length of the pen to be 3ft longer than twice the width. Which equation can you use to find the width w of the pen?
Given that the length should be 3ft longer than twice the width, the equation that will be used to get the width will be as follows; let the width be w; the length will be: (2w+3) hence the area will be: w(2w+3)=90 2w^2+3w-90=0 thus the above equation can be used to find the value of w
