Question 1101107
An equation that lets you read the vertex:


{{{y=3(x^2+3x-10)}}}
{{{3(x^2+3x+(3/2)^2-(3/2)^2-10)}}}

{{{3((x+3/2)^2-9/4-10)}}}
{{{3((x+3/2)^2-9/4-40/4)}}}
{{{3((x+3/2)^2-49/4)}}}
{{{highlight(y=3(x+3/2)^2-147/4)}}}



An equation in descending degree on variable:

{{{3(x^2+3x-10)}}}
{{{highlight(y=3x^2+9x-30)}}}