Question 1062845
Let w be the width of the smaller rectangle.  Then its' length is w+5, so its' area is w(w+5). Then the larger rectangle's width is w+2, and its length is w+5+2, or w+7. So:
(w+2)(w+7)-w(w+5)=?
w²+9w+14-w²-5w=?
4w+14 is the difference between the two rectangles. &#9786;&#9786;&#9786;&#9786;