(4 - a)/(a^2 - 16)
(4 - a)/(a + 4)(a - 4)
-1(a - 4)/(a + 4)(a - 4)
Cancel a- 4 terms
-1/(a + 4)
(4 - a)/(a + 4)(a - 4)
-1(a - 4)/(a + 4)(a - 4)
Cancel a- 4 terms
-1/(a + 4)
(4 - a)/(a^2 - 16)
- Thread starter math_celebrity
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