The expression X^2(x+3)-9(x+3) is equivalent to (x+3)^n(x-3) when n equals?

Question

I got an answer of 2
I did X^2(x+3)-9(x+3) (x+3)^n(x-3)
4(5)-9(5)=-25 -25=(5)^n(-1)
n=2
Is this correct? Thank you for checking my work

Answer 1

looks good

Answer 2

Thank you