Question 832170
(2 x sqrt x+11)^2 = (sqrt x +2)^2 + (sqrt 3x - 6)^2 <--- Here is your problem
{{{C=A+B}}}
{{{C^2=(A+B)(A+B)}}}
{{{C^2=A^2+AB+AB+B^2}}}
{{{C^2=A^2+2AB+C^2}}}