Question 256940
We have the equation
{{{-9x^2-6x-1=0}}}
The discriminant is defined as b^2-4ac or the stuff under the sqrt.
In our exampl, we get
{{{D = (-6)^2 -4*(-9)(-1)}}}
{{{D = 36 - 36}}} - -> D = 0.
The real solutions are found with the quadratic. We get
X = 6 / -18 = -1/3.