Question

The length of a rectangle is 4 cm longer than its width. find its width given its area is 24cm2.

Answer 1

l= 4+w
l * w = 24
(4+w) * w =24
4w+w^2-24 = 0
(1) w=3.29
(2) w=-7.29 (reject)
=> The width is 3.29