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Find all the values of x that are not in the domain of g

Find all the values of x that are not in the domain of g-example-1
User Florrie
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1 Answer

5 votes

We have the next function


g(x)=(x+1)/(x^2+2x+1)

And we must find the values of x that are not in the domain of g.

since the functions is a faction the values of x where the function is not defined are the values that x takes when the denominator is equal to 0

To find these values we must equal the denomintor to 0 and then solve it for x


x^2+2x+1=0

factoring,


\begin{gathered} (x+1)^2=0 \\ x+1=0 \\ x=-1 \end{gathered}

Finally, the value of x that is not in the domain of g is -1

ANSWER:


x=-1

User Jetlej
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