SOLUTION: Find each product (3+x+y)(-3+x-y)

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Question 45614: Find each product
(3+x+y)(-3+x-y)
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(3+x+y)(-3+x-y)
Create the form (a-b)(a+b) as follows:
Rewrite as (x-(y+3))(x+(y+3))
=[x^2-(y+3)^2]
=[x^2-(y^2+6y+9)]
=x^2-y^2-6y-9
Cheers,
Stan H.