Question 892066
Why the approximate value?


{{{-5x^2+3x+3=0}}}
{{{5x^2-3x-3=0}}}
check discriminant, (-3)^2-4(5)(-3)=9+60=69
{{{highlight(x=(-3+- sqrt(69))/(10))}}}


Those are approx.  -1.307 or  0.5307