Question 857562
{{{x^2-2ax+a^2=x^2-2bx+b^2}}}
{{{-2ax+a^2=-2bx+b^2}}}
{{{-2bx+b^2=-2ax+a^2}}}  -------Symmetric Property
{{{2ax-2bx+b^2=a^2}}}
{{{2ax-2bx=a^2-b^2}}}
{{{x*(2a-2b)=a^2-b^2}}}
{{{x=(a^2-b^2)/(2a-2b)}}}----which is factorable and simplifiable
{{{x=((a-b)(a+b))/(2(a-b))}}}
{{{highlight(x=(a+b)/2)}}}