need help with a problem

[ptebwwong]

I need help with this problem:

Factor
-2x^2y^2+128

Should it be factored like -2(x^2y^2-64). If so, what are the next steps.

[Loren]

You did good by factoring out the common monomial factor first. The next step is to determine whether or not x^2y^2-64 is factorable. If it is, do it. If it isn't, don't.