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WITCHER [35]
3 years ago
11

Which represents all the values of x that make the rational expression 2x-4 over x-5 undefined?

Mathematics
1 answer:
mixas84 [53]3 years ago
5 0

For this case we have the following expression:

\frac {2x-4} {x-5}

By definition, we have the expression undefined when the denominator is 0.

So:

x-5 = 0

Adding 5 to both sides of the equation:

x-5 + 5 = 5\\x = 5

Thus, the expression is undefined when x = 5.

Answer:

Option B

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Step-by-step explanation:

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