SOLUTION: Can I get help with adding this problem? (2x + 7) / ( x - 7) - (2x - 7) / (x + 7)

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Question 308281: Can I get help with adding this problem?
(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)
subtract the fractions with LCM as (x+7)(x-7)
.
(2x+7)(x+7)-(2x-7)(x-7)
2x^2+ 21x+49 - 2x^2+21x -49 / (x+7)(x-7)
.
42x / (x+7(x-7)