furyshot99orab1l
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  • 10-05-2018
  • Mathematics
contestada

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

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carlosego
carlosego carlosego
  • 10-05-2018
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.
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