A rectangle has length L=4x+2L = 4x + 2L=4x+2 and width W=3x−1W = 3x - 1W=3x−1. Which expression represents the area AAA?
12x2+2x−212x^2 + 2x - 212x2+2x−2
12x2+10x−212x^2 + 10x - 212x2+10x−2
7x+17x + 17x+1
12x2−212x^2 - 212x2−2