Question 954975
{{{6x^2 -6(a+b)+(4/3* a^2 +10/3* ab+4/3* b^2)=0 }}}
{{{6x^2 =6(a+b)-(4/3* a^2 +10/3* ab+4/3* b^2)}}}
{{{x^2 =(a+b)-(4/3* a^2 +10/3* ab+4/3* b^2)/6}}}
{{{x =0 +- sqrt((a+b)-(4/3* a^2 +10/3* ab+4/3* b^2)/6)}}}