Question 7013
{{{4x^2 - 20 = 5}}}
{{{4x^2 = 25}}}
{{{x^2 = 25/4}}}
{{{x = sqrt(25/4)}}} or {{{x = - sqrt(25/4)}}}
{{{x = sqrt(25)/sqrt(4)}}} or {{{x = - sqrt(25)/sqrt(4)}}}
{{{x = 5/2}}} or {{{x = - 5/2}}}


jon.