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posted by Michael Sunday, December 2, 2012 at 7:52pm.

(2x/x^2-16)+(7/x-4)

Sorry. I don't know.

2x/((x-4)(x+4)) + 7/(x-4) so the LCD is (x-4)(x+4) = 2x/((x+4)(x-4) + 7(x+4)/((x+4)(x-4)) = ( 2x + 7x + 28)/((x+4)(x-4)) = (9x+28)/(x^2 - 16)

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