Kayla wants to remodel her house by knocking down a wall between two adjoining, rectangular rooms. On the blueprints, the width of both rooms is defined by the expression (x + 3).
(2x + 7)
(22-1)
(x + 3)
(x + 3)
If the length of the first room is (2x + 7) and the length of the second room is (2x - 1), which
expression models the area of the new room once the wall is knocked down?