Consider . The domain of…

MATHEMATICS · Single correct · AP · AP Precalculus · Polynomial and Rational Functions · Polynomial and Rational Functions

Problem

Consider

p(x)=\dfrac{2x}{x^{2}+6x+1}

. The domain of

p(x)

is (a)

\mathbb R\setminus\{-6+4\sqrt{2},\,-6-4\sqrt{2}\}

(b)

\mathbb R\setminus\{-3+2\sqrt{2},\, -3-2\sqrt{2}\}

(c)

\mathbb R\setminus\{3+2\sqrt{2},\,3-2\sqrt{2}\}

(d)

\mathbb R\setminus\{-3\}