Question

The length of a rectangle is 1 meter less than its

width. The area of the rectangle is 42 square
meters. Find the dimensions of the rectangle.

Answer 1

Explanation:

42=w(w-1)

w^2-w-42=0

w^2-6w+7w-42=0

(w+7)(w-6)=0

w=-7or w=6

note: we ignore the negative value as measurement cannot be negative

width=6metres

length=5metres