The answer is (2,3) hope it help's
This problem is a difference of squares. So to solve this you want to factor it out so you get two numbers that multiple to -9 and add to 0. That would be -3 and 3
f(x)=(x-3)(x+3)
So your solution when you set f(x) to 0 would be -3 and 3.
This expression is a difference of squares:
2 I 1 6 -16
I 2 16
--------------------
1 8 0
so the quotient is x+8. A is the answer.
