SOLUTION: State the excluded values for the following expression. Then simplify the expression. Please explain and show work. (n^2-10n+9)/(n^2+n-90)

Question 1009877: State the excluded values for the following expression. Then simplify the expression. Please explain and show work.
(n^2-10n+9)/(n^2+n-90)
Found 2 solutions by It is costly, MathLover1:
Answer by It is costly(175) (Show Source): You can put this solution on YOUR website!

Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

.....factor and simplify first

State the excluded values:

denominator cannot be equal to zero, so exclude the values of that make denominator equal to zero
since solutions are the excluded values and they are: and

so, domain is:
{ element : and }

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