Question

If a rectangle is 2 meters more than its width, and the area of it is 80 square meters, what is the length and width?

Answer 1

Ok I think it means that the length
`l` of the rectangle is 2 m more than is width
`w`...
The area is A=
`l*w=(w+2)*w=80`
so:
`w^(2) +2w-80=0`
Solving this equation (using the quadratic formula) you get 2 solutons. The only acceptable is the positive one, i.e.
`w=8 m`, the length will then be
`l=w+2=8+2=10m`.