Question 1175418
Width = w
Length = 2w + 2
<pr>
w(2w + 2) = 60
<pr>
2w² + 2w = 60
<pr>
2w² + 2w - 60 = 0
<pr>
2(w² + w - 30) = 0
<pr>
w² + w - 30 = 0
<pr>
(w - 5)(w + 6) = 0
<pr>
w = 5 and w = -6
<pr>
Since the width (w) cannot be a negative number, we can eliminate w = -6.  Therefore, were are left with w = 5.
<pr>
Width = w = <b>5</b>
Length = 2w + 2 = 2(5) + 2 = 10 + 2 = <b>12</b>