Given a rectangle with area A=x2+5x+6A = x^2 + 5x + 6A=x2+5x+6 and width w=x+2w = x + 2w=x+2, what is the length lll?
x+1x + 1x+1
x+3x + 3x+3
x−3x - 3x−3
x2+3x^2 + 3x2+3