SOLUTION: Why is the signs when factoring the difference of 2 squares a sum and a difference ?

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Question 1165711: Why is the signs when factoring the difference of 2 squares a sum and a difference
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Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
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Why is the signs when factoring the difference of 2 squares a sum and a difference
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Why for real numbers x and y, ?

According to those steps, x%5E2-y%5E2=%28x%2By%29%28x-y%29.