SOLUTION: When simpliflying the rational expression (x+8)/(x+2), why is improper to cancel out the x's?
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Question 581225: When simpliflying the rational expression (x+8)/(x+2), why is improper to cancel out the x's?
Answer by Gogonati(855) (Show Source): You can put this solution on YOUR website!
You can cancel out the x-s only when they are factors. In our case the denominator is x+2 and the nominator x+8, are different factors.
Suppose that x=2 then:
(right)
(wrong)
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