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Mathematics 20 Online
OpenStudy (anonymous):

Simplify x^2 - 36/x^2 - 12x + 36

jimthompson5910 (jim_thompson5910):

hint: factor the numerator and denominator

OpenStudy (anonymous):

I somehow keep ending up with 12x but I know that's not correct.

jimthompson5910 (jim_thompson5910):

I'll start you off x^2 - 36 x^2 - 6^2 (x-6)(x+6) ... using the difference of squares rule

jimthompson5910 (jim_thompson5910):

now factor the denominator

OpenStudy (anonymous):

is it x+6/x-6?

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