Question 908541
(a)  has no vertical asymptote because the denominator will never be zero.


(b)  will have a vertical asymptotes for {{{4x^2-8=0}}}
{{{x^2-2=0}}}
{{{x^2=2}}}
{{{x=-sqrt(2)}}} AND {{{x=sqrt(2)}}}



(The "AND" for the two vertical asymptotes for (b).  )