GMAT Problem Solving Question 18: Algebraic identities

 
The following GMAT Problem Solving question tests your understanding of how to simplify expressions using algebraic identities that are commonly tested on the GMAT.

Question 18:

$\dfrac{(18x^2-8y^2)(3x-2y)}{9x^2+4y^2-12xy}=$

1. $\quad 3x+2y$
2. $\quad 6x-4y$
3. $\quad 6x+4y$
4. $\quad 18x-8y$
5. $\quad 18x+8y$