Question 989630
{{{k^2-16k+100=k^2-4k+85}}}
Both members have a k^2 term...



{{{k^2-16k+100-k^2=k^2-4k+85-k^2}}}
{{{-16k+100=-4k+85}}}
{{{100=-4k+16k+85}}}
{{{100=12k+85}}}
{{{100-85=12k}}}
{{{15=3*4k}}}
{{{5=4k}}}
{{{highlight(k=5/4)}}}