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Mathematics 15 Online
OpenStudy (anonymous):

Solve x/(x-3) > 0 Please explain

OpenStudy (caozeyuan):

if the result is greater than 0, that means both the numerator and the denominator are of the same sign.So the first case is that they are both positive so the solution is x>3, while taking both of them as negative yield x<3. So the final solution is x> 3 or x<3

OpenStudy (anonymous):

lol you multiplied 0 by x-3 and got x-3

OpenStudy (caozeyuan):

sorry It should be x<0 or x>3

OpenStudy (anonymous):

thanks very much for the help mate!

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