https://www.pearson.com/channels/college-algebra/asset/f1d4cfdd/simplify-each-complex-fraction-1-x-h-2-9-1-x-2-9-h?chapterId=a36ac4ed
Simplify each complex fraction. [ 1/[(x+h)2 + 9] - 1/(x2+9)] / h
complex fractionsimplifyh
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