Questions on Algebra: Operations with Signed Numbers answered by real tutors!

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X+8
________
X^2+4X-5
Determine the values of x where the expression is defined.
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(x+8)/[(x+5)(x-1)]
Expression in undefined where the denominator is zero;
that is at x = -5 and at x = 1.
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Cheers,
Stan H.

You can put this solution on YOUR website!
This expression is defined for all x except where that value of x makes the denominator 0.
So factor the denominator


When x equal 1 or x equal -5, the denominator is 0. Anything divided by 0 is undefined.

All values except 1 and -5