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Mathematics
Mathematics
Problem
66. True or False The graph
r
(
x
)
=
2
x
−
1
(
x
+
2
)
(
x
−
1
)
r(x)=\frac{2 x-1}{(x+2)(x-1)}
r
(
x
)
=
(
x
+
2
)
(
x
−
1
)
2
x
−
1
changes sign at
x
=
−
2
x=-2
x
=
−
2
. Justify your answer.
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