SOLUTION: Add, simplify if possible 2r/r^2-16 + r/r-4

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Question 357899: Add, simplify if possible
2r/r^2-16 + r/r-4
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Use the common denominator, r%5E2-16=%28r%2B4%29%28r-4%29


%282r%29%2F%28r%5E2-16%29%2Br%2F%28r-4%29=%282r%2Br%5E2%2B4r%29%2F%28%28r-4%29%28r%2B4%29%29
%282r%29%2F%28r%5E2-16%29%2Br%2F%28r-4%29=%28r%5E2%2B6r%29%2F%28%28r-4%29%28r%2B4%29%29