Question 977321
k=12 or k=-12, but you probably want to see some steps.


You are looking for (x+6)(x+6) because you know you want the constant term to be 36.  You can also try using descriminant, but that should not be needed for this simple example.


{{{k^2-4*36=0}}}
{{{k^2=4*36}}}
{{{k=sqrt(4*36)}}}
{{{k=0+- 2*6}}}