SAT math practice question: Factoring trinomials with two variables

 
Try the following SAT math practice question (No Calculator) that tests your understanding of how to factor trinomials that have two variables.

The binomial $2x-3y$ is a factor of which of the following ?

1. $\quad 2x^2-xy-6y^2$
2. $\quad 2x^2+xy-6y^2$
3. $\quad 2x^2-xy+3y^2$
4. $\quad 2x^2+xy-3y^2$