What is the discriminant of #-20x^2+3x-1=0# and what does that mean?
We know,for an equation of the form,
Thus,comparing the given equation with the standard form, we get
Meaning of the Discriminant D
To fully understand the meaning of D, you may read the math article, titled :"Solving quadratic equation by the quadratic formula in graphic form", on Socratic Search, or Google.
The improved formula, that gives the 2 values of x, is:
In this formula,
In the above example,