Answer:
[tex] - y(2x + 9)[/tex]
Step-by-step explanation:
The GCF doesn't have to be a number. In this case, it is -y because both the -2xy and -9y share it. It's also easier when you take out a negative. Once you take the GCF out, your new expression should be:
[tex] - y(2x + 9)[/tex]
