Question 798859
Divide (2x + 1) into 6x^2 + 11x + 4
.........3x.....4                   
2x + 1)6x^2 + 11x + 4
.........6x^2 + 3x
.......---------
..............8x  + 4
..............8x  + 4
..............-------

So, Length = 3x + 4
Width = 2x + 1
Hope this helps.
:-)