Question 256369
{{{f(x) = -5x^2 +20x +2}}}
Complete the square.
{{{f(x) = -5(x^2 -4x) +2}}}
{{{f(x) = -5(x^2 -4x+4) +2+20}}}
{{{f(x) = -5(x-2)^2 +22}}}
{{{ graph( 300, 300, -5, 5, -25, 25, -5x^2 +20x +2) }}}