Answer:
3(y2 - 2)
Step-by-step explanation:
Distrubute first the negative in the function inside the pharenthesis
It will became:
5y2 + 2xy - 9 - 2y2 - 2xy + 3
then combine the ones with similar terms
5y2 - 2y2 + 2xy -2xy - 9 + 3
3y2 - 6
or since it is both divisible by 3 we can do it as
3(y2 - 2)
