Question

What is the discriminant of the equation-x^2-9x-9=0

Answer 1

Given data:

The given expression is -x^2-9x-9=0.

The descriminant of the given equation is,

`\begin{gathered} D=(-9)^2-4(-1)(-9) \\ =81-36 \\ =45 \end{gathered}`

Thus, the descriminant of the given equation is 45.