Question 1137501
{{{-2x^2-4x}}}
{{{-2(x^2+2x)}}}
{{{-2(x^2+2x+1-1)}}}
{{{-2((x+1)^2-1)}}}
{{{-2(x+1)^2+2}}}


<b>vertex,  (-1, 2)</b>



{{{x^2+2x=0}}}
{{{x(x+2)=0}}}


<b>x-intercepts,  (0, 0) and  (-2, 0).</b>