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August 30, 2015

Homework Help: Intermediate Algebra

Posted by ladybug Please Help!! on Monday, June 18, 2012 at 8:45pm.

solve equation (x+1)(x-2)=54
Eric stated that the solution would be (x+1)=54==> x=53 or (x-2)=54==> x=56
However at least one of these solutions fails to work when substituted back in the orginial equation. Why is that? Please help Eric to understand better, solve the problem yourself, and explain your reasoning.

Can someone please help me with this. I need this as soon as possible.

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