Question

The rectangle has an area of x^2 - 9 square meters and a width of x - 3 meters.

What expression represents the length of the rectangle?

Answer 1

Length = x + 3 meters

Explanation:

Expression for the area of the rectangle =
`x^2 - 9 = (x + 3)(x - 3) m`

Expression for width of rectangle = (
`x - 3`) m

Area of a rectangle =
`Length * Width`

⇒ Expression for length of rectangle =
`(Area)/(Width) = ((x + 3)(x - 3))/((x - 3)) = (x + 3) m`