Posted by Rachal on Wednesday, May 18, 2011 at 7:54pm.
The function h is is defined below.
h(x)=48x^2+ 12x  16
Find all values of x that are NOT in the domain of h.
If there is more than one value, separate them with commas.
I'm lost.

Algebra restate problem  Rachal, Wednesday, May 18, 2011 at 7:59pm
The function h is is defined below
h(x)=(x+6)/(x^2+9x+8)
Find all values of x that are NOT in the domain of h.
If there is more than one value, separate them with commas.

Algebra  MathMate, Thursday, May 19, 2011 at 11:36am
This is a rational function.
The domain is in the Real numbers, i.e. (∞,∞) except where the denominator becomes zero.
Therefore solving for
(x^2+9x+8) = 0
(x+8)(x+1) = 0
or x=8, or x=1.
Therefore the values of x that do not belong to the domain of f(x) is 8 and 1.
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