Asked by shania

Subtract and simplify if possible
c/(x+c)-c/(x-c)
Answered by drwls
Rewrite with a common denominator.

c(x-c) -c(x+c)/[(x-c)(x+c)]
= -2c^2/(x^2 - c^2)
= -2/[(x/c)^2 -1]
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