SOLUTION: How do I come up with a comon denominator for this equation? 5/2r+1 - 3/2r-1 = 0

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Question 126768This question is from textbook Algebra and Trigonometry
: How do I come up with a comon denominator for this equation?
5/2r+1 - 3/2r-1 = 0 This question is from textbook Algebra and Trigonometry

Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
The same way you would come up with a common denominator for any set of fractions whose denominators have no factors in common -- multiply them together. Fortunately in this case, the task is relatively simple because the two denominators are the factors of the difference of two squares.

%282r%2B1%29%282r-1%29=4r%5E2-1