Question 311299
Use the quadratic formula,
{{{x = (-b +- sqrt( b^2-4*a*c ))/(2*a) }}} 
{{{x = (-(-3.45) +- sqrt( (-3.45)^2-4*(2.67)*(-4.54) ))/(2*(2.67)) }}} 
{{{x = (3.45 +- sqrt( 11.9025+48.4872 ))/5.34 }}}
{{{x = (3.45 +- sqrt( 60.3897))/5.34 }}} 
{{{x = (3.45 +- 7.7711)/5.34 }}}
{{{x1= (3.45 + 7.7711)/5.34 }}}
{{{highlight_green( x1=2.10) }}}
{{{x2= (3.45 - 7.7711)/5.34 }}}
{{{highlight_green( x2= -0.809) }}}
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{{{ graph( 300, 300, -3, 3, -6, 2, 2.67x^2-3.45x-4.54 ) }}}