Question 763308
9 + 3x
------
x² - 9


3x + 9
--------------   {re-arranged numerator and factored denominator into two binomials}
(x + 3)(x - 3)


3(x + 3)
--------------   {factored 3 out of numerator}
(x + 3)(x - 3)


3
-----   {cancelled (x + 3) in numerator and denominator}
x - 3
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