SOLUTION: I need help adding the following fraction. (2x + 7) / ( x - 7) - (2x - 7) / (x + 7)

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Question 308599: I need help adding the following fraction.
(2x + 7) / ( x - 7) - (2x - 7) / (x + 7)
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
(2x + 7) / ( x - 7) - (2x - 7) / (x + 7)
LCM = (x-7)(x+7)
(2x+7)(x+7)- (2x-7)(x-7) /(x-7)(x+7)
2x^2 +21x+49 -( 2x^2-21x+49)/(x-7)(x+7)
2x^2 +21x+49 - 2x^2+21x-49/(x-7)(x+7)
42x/(x-7)(x+7)