Question 846783
{{{3(x-4)^2+5=20}}}


{{{3(x-4)^2=20-5}}}


{{{3(x-4)^2=15}}}


{{{(x-4)^2=15/3}}}


{{{(x-4)^2=5}}}


{{{x-4=""+-sqrt(5)}}}


{{{x-4=sqrt(5)}}} or {{{x-4=-sqrt(5)}}}


{{{x=4+sqrt(5)}}} or {{{x=4-sqrt(5)}}}



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The two exact solutions are {{{x=4+sqrt(5)}}} or {{{x=4-sqrt(5)}}}