Question 164317
Find the zeros??

{{{9s^2+12s+4=0}}}
{{{s= (-b +- sqrt( b^2-4*a*c ))/(2*a) }}}
{{{s= (-12 +- sqrt( 12^2-4*9*4 ))/(2*9) }}}
{{{s= (-12 +- sqrt( 144-144 ))/(18) }}}
Since the discriminant is zero, there is a double root.
{{{s=-12/18=-2/3}}}
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Check the answer by graphing the equation.
{{{ graph( 300, 300, -2, 2, -5, 5, 9x^2+12x+4) }}}