Find the domain f=(5x+4) / (x^2+3x+2)

Expert Answers

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f(x)= (5x+4)/(x^2+3x+2)

First we need to determine x values where f(x) is not defined.

f is not defined when x^2+3x+2 =0 (since f is a ratio)

x^2+3x+2=0

(x+1)(x+2)=0

x= {-1,-2}

Then f domain if R-{-1,-2}

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