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OpenStudy (anonymous):
for which value of x is the expression x-7/x+2 undefined?
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OpenStudy (xguardians):
Whatever x is to make it = in the denominator. In this case x cannot equal -2
OpenStudy (xguardians):
Whatever x is to make it ZERO, in the denominator, forgot to put zero :/
OpenStudy (xguardians):
-2 is the answer :)
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