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How to simplify
m squared -81
———————
m+9

Sagot :

Factor the numerator : m² - 81
The factors are:  (m-9) (m+9)

m² - 81
 m+9

(m-9) (m+9)  = m-9
         (m+9)

Final answer : m-9
Factor the numerator as (m+9) (m-9)
Since there is (m+9) in the denominator, cancel both
So the answer is (m-9)