Answer:
the answer is six
Step-by-step explanation:
The answer is C, Ik this bc I already finished learning this
Answer:
The product is the difference of squares is 
Step-by-step explanation:
Explanation
- The given expression is (x y-9)(x y+9).
- We have to multiply the given expression.
- Square the first term xy. Square the last term 9 .
