Posted by Ashly on Friday, September 17, 2010 at 7:26pm.
I have a feeling you meant to type
4/(x-2) + 1/(x+2) = 7x/(x^2-4)
in that case, multiply each term by x^2-4 to get
4(x+2) + (x-2) = 7x
4x + 8 + x - 2 = 7x
-2x = -6
x = 3
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