For which value(s) of x will the rational expression below be undefined?
Check all that apply.
(x-3)(x+6)
x + 7

Question:

For which value(s) of x will the rational expression below be undefined? Check all that apply.

(x-3)(x+6)/x+7

For x = -7 the rational expression is undefined

Solution:

Given rational expression is:

We have to find the value of x for which the rational expression becomes undefined

A rational expression is undefined when the denominator is equal to zero

Here, the denominator becomes zero when x = -7

Substitute x = -7 in given

Thus for x = -7 the rational expression is undefined

i think this could be a possible answer (1 / 84) -1

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