Question 979447
Using formula for general solution of quadratic equation,
{{{x=(a+3b+- sqrt((a+3b)^2-4*3ab))/2}}}


Look for a possible simplification
{{{(a+3b+- sqrt(a^2+6ab+9b^2-12ab))/2}}}


{{{(a+3b+- sqrt(a^2-6ab+9b^2))/2}}}


{{{(a+3b+- sqrt((a-3b)^2))/2}}}


{{{(a+3b+- (a-3b))/2}}}


{{{(a+3b-a+3b)/2}}}
{{{6b/2}}}
{{{highlight(3b)}}}
OR
{{{(a+3b+a-3b)/2}}}
{{{2a/2}}}
{{{highlight(a)}}}