Question 920705
{{{f(x)=2(x+2)(x-4)^4}}}
That function is zero when and only when one of its factors is zero.
{{{2}}} is never zero.
{{{x+2=0}}}--->{{{highlight(x=-2)}}}
{{{(x-4)^4=0}}}--->{{{highlight(x=4)}}}
The zeros of {{{f(x)=2(x+2)(x-4)^4}}} are
{{{highlight(x=-2)}}} and {{{highlight(x=4)}}} .