Question 892563
{{{f(x)=0}}}
{{{(x-4)^2-9=0}}}
{{{(x-4)^2=9}}}
{{{x-4=0 +- 3}}}
{{{x=4 +- 3}}}
{{{x=7}}} and {{{x=1}}}
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{{{graph(300,300,-6,10,-10,6,(x-4)^2-9)}}}