Question

A concert hall is in the shape of a rectangle. Its floor has a length of (x + 6) meters and a width of
(2x − 3) meters. The expression below represents the area of the floor of the hall in square meters.

(x + 6)(2x − 3)

Which of the following simplified expressions represents the area of the floor of the concert hall, in square meters?

a. 2x2 + 9x − 18
b. 2x2 + 15x − 18
c. x2 + 15x − 18
d. x2 + 9x + 18