New Billboard Dimensions: 4m x (4m + 96cm^2)

[Peppermint]

An amusement park wants to place a new rectangular billboard to inform visitors of their new attractions. Suppose the length of the billboard to be placed is 4m longer than its width and the area is 96cm^2. What will be the length and the width of the billboard?

 

[Prove It]

Solve x(x + 4) = 96 for x (which is the width).

 

[HOI]

The original post said "the area is 96 cm^2". That is impossible if the length is to be "4 m longer than its width". Prove It is assuming that the area is 96 m^2.