Question 1117682
{{{-5(x^2+12x)-181}}}
{{{-5(x^2+12x+36-36)-181}}}

{{{-5((x+6)^2-36)-181}}}

{{{-5(x+6)^2+5*36-181}}}

{{{-5(x+6)^2+180-181}}}

{{{-5(x+6)^2-1}}}




---------------------------------------------mistake with sign------------------
{{{5(x^2-12x)-181}}}

{{{5(x^2-12x+36-36)-181}}}

{{{5((x-6)^2-36)-181}}}

{{{5(x-6)^2-5*36-181}}}

{{{5(x-6)^2-361}}}

Vertex is  <s>(6, -361)</s>.