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MaRussiya [10]
3 years ago
7

For what value of x is the rational expression below undefined?

Mathematics
1 answer:
vivado [14]3 years ago
8 0
The expression is undefined when C, x = 9.

The way that this expression can be undefined is if the denominator is 0 (dividing by 0 is undefined). To make the denominator 0, that means that 9 - x =0. That means that x = 9. So, when x = 9, the denominator is zero, meaning that the expression is undefined when C, x = 9. 
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