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Find the nonpermissible replacement for a in this expression a+6/a+4

1 Answer

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The correct answer for the exercise shown above is:

a=-4

The explanation is shown below:

1. You have the following expresssion given in the problem above:

a+6/a+4

2. By definition, the nonpermissible replacement for a is the value that make the denominator equal to zero.

3. Keeping this on mind, you have:

a+4=0
a=-4

a+6/a+4=-4+6/-4+4=2/0

Therefore, as you can see, the answer is a=-4.
User Jeankowkow
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