Question

IN THE QUADRATIC EQUATION FORMULA , WHAT DOES *D* STANDS FOR?​

Answer 1

Answer:

D stands for Discriminant by the way. But, there's no use of this in the quadratic formula. D is only used to calculate whether the given quadratic polynomial has real roots or not.

Answer 2

Answer:

In quadratic equation D stands for discriminant, which is also represented by symbol (∆) named delta.

• D = b² - 4ac or ∆ = b² - 4ac

It shows the nature of the roots of the equation.

∆ < 0, Roots are not real.

∆ = 0, Roots are real and equal.

∆ > 0, Roots are real and unequal.