Question 1204244
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Let
f(x) = 1(1 + 2(1 + 3/x).
There are three real numbers x that are not in the domain of f(x). What is the sum of those three numbers?
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In your formula for  f(x),  there are two opening parentheses and only one closing parenthesis.



Thus,  the formula is  {{{highlight(highlight(FATALLY))}}}  WRONG.



The assignment,  prepared so carelessly,  can not be accepted for execution.



Be more attentive,  accurate and responsible,  while posting to this forum.



Also, from the post I see that that the missed parenthesis is not only one your mistake:  there are others,  too.



Thoroughly find and fix all your errors;  then re-post to the forum.


Please do not post it to me in person.