SOLUTION: Please help-I am stuck. Find the restricted values of x for the given rational expression. x^2 + 15 divided by x^2-3x-4

Question 354412: Please help-I am stuck. Find the restricted values of x for the given rational expression. x^2 + 15 divided by x^2-3x-4
Found 2 solutions by scott8148, Earlsdon:
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
restricted values usually involve division by zero (a no-no)

factoring the denominator ___ (x + 1)(x - 4)

so if x equals -1 or 4 , the denominator will equal zero and the expression will be undefined
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Find the restricted values of x:

The restricted values of x are those values of x that would make the denominator equal zero. First factor the denominator.

The denominator will be zero when:
or
If then or
If then
The restricted values of x are:
and
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