L = w + 4
L w = 165
(w+4)w = 165
w^2 + 4 w - 165 = 0
(w+15)(w-11) = 0
w = 11
the outside of a picture frame has a length which is 4 cm more than width. The area enclosed by the outside of the picture frame is 165 square cm. Find the width of the outside of the picture frame.
1 answer
1 answer