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Question #ad56f

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Dec 31, 2016

$x^2/(x^2-4) - (x+1)/(x+2)$

$=x^2/((x-2)(x+2)) - (x+1)/(x+2)$

$=(x^2- (x+1)(x-2))/((x-2)(x+2))$

$=(x^2- x^2+x+2)/((x-2)(x+2))$

$=(x+2)/((x-2)(x+2))$

$=1/((x-2)$

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