Answer:
-2755
Step-by-step explanation:
Answer:
Step-by-step explanation:
I suspect it is 64 not 65,
9x^2-64y^2
= (3x - 8y)(3x + 8y).
(If it is 65 there are no factors)
For the mean you add them all up and divide by the ammount of numbers you added. So it would be 118