Values that produce a denominator of _[blank 1]_ are called _[blank 2]_ values because they make the rational expression _[blank 3]_.
For example, in the rational expression x+3x2−4, the _[blank 2]_ values are _[blank 4]_.
Answers : 0
2,-2,-3
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undefined
eliminated
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unknown
1
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2,-2
2,-3

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