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OpenStudy (anonymous):
simplify x2-1 over x+1
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OpenStudy (angela210793):
=X-1
OpenStudy (angela210793):
x^2-1 can b written as (x-1)*(x+1)
OpenStudy (anonymous):
i need work for this problem.. or i wont get it
OpenStudy (angela210793):
ok....
OpenStudy (anonymous):
its x to the second -1 over x+1
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OpenStudy (angela210793):
X^2-1 (x-1)*(x+1) --------=------------=x-1 we can simplify X+1 X+1 (x+1)
OpenStudy (angela210793):
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