Question 1001001
2x^2-6x-1=0
a=2, b=-6, c=-1
x=(1/4) (6 +/- sqrt (36+8)); sqrt 44=2 sqrt 11
x=(1/2) 3+/-sqrt 11
numerically this is (-0.16,3.18)
{{{graph(300,200,-10,10,-10,10,2x^2-6x-1)}}}