SOLUTION: Factor completely: x^2-9

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Question 435763: Factor completely: x^2-9
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
x%5E2+-+9+=+x%5E2+-+%283%29%5E2. This is a difference of two squares so it can factor as %28x+-+3%29%28x+%2B+3%29.