College Algebra Quiz
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FOUNDATIONS & ALGEBRAIC SKILLS
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What is the domain of the rational expression
x
2
−
9
x
2
−
5
x
+
6
\frac{x^2 - 9}{x^2 - 5x + 6}
x
2
−
5
x
+
6
x
2
−
9
?
A
All real numbers except
x
=
2
x = 2
x
=
2
and
x
=
3
x = 3
x
=
3
B
All real numbers except
x
=
−
3
x = -3
x
=
−
3
and
x
=
3
x = 3
x
=
3
C
All real numbers except
x
=
2
x = 2
x
=
2
D
All real numbers except
x
=
3
x = 3
x
=
3
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