Algebra help, 10 points to best answer!
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Algebra help, 10 points to best answer!

[From: ] [author: ] [Date: 12-06-18] [Hit: ]
......
So the question is: Find the least common denominator for these two rational expressions
n/n^2-1 and -n/n^2+8n-9

please help me find the answer and show the work so i can understand how to find it?

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LCD = common factors * other factors

n/(n² - 1); -n/(n² + 8n - 9)

n/((n + 1)(n - 1)); -n/((n + 9)(n - 1))

LCD = (n - 1)(n + 1)(n + 9)
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