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OpenStudy (anonymous):
The expression x2 - 4 A. Can be factored B. Cannot be factored
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OpenStudy (skullpatrol):
Any Ideas?
OpenStudy (anonymous):
i think b
jimthompson5910 (jim_thompson5910):
x^2 is a square 4 = 2^2 is a square ------------------------------------------------------- So x^2 - 4, or x^2 - 2^2, is a difference of squares
OpenStudy (skullpatrol):
Why do you think it can not be factored?
OpenStudy (anonymous):
nevermind it can be factored
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OpenStudy (skullpatrol):
Show me the factorization please.
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