The expression x-7 divided by 9-x^2 is undefined when x is????

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asked Sep 1, 2016 31.0k views

1 Answer

Bubak · Answer 1 · 2016-09-06T01:44:24+0000

You have x-7/ 9-x^2.
An expression is undefined when the denominator = 0.
What value is x to make 9-x^2 = 0?
Maybe 3?
3^2 = 9
9-9 =0

Hope this helps!

The expression x-7 divided by 9-x^2 is undefined when x is????

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