Question

Simplify the rational expressions State any excluded values.

Answer 1

\[\frac{ x-2 }{ x^2 + 3x - 10 }\]

Answer 2

If you factor the denominator: (x-2)(x+5), you can simplify the fraction.
The zeroes of the denominator are the excluded values.

Answer 3

1/x+5 ?

Answer 4

Yes!
Excluded values?

Answer 5

I have no idea >.<

Answer 6

You know that dividing by 0 cannot be done.

So the x-values that make the denominator 0 are to be excluded.

We've found that the denominator can be written as (x-2)(x+5).
What x-value(s) would give 0 there?