write the formula for the descriminant (quadradic)

Question

ax²+bx+c=0

Answer 1

The discriminant is the part of the quadratic formula that is under the radical sign.

 

     b² - 4ac

 

The value of the discriminant can be used to determine the number and the types of solutions to quadratic equations.

 

      + => positive discriiminant value indicates 2 unique real solutions

      0  => 0 value indicates 1 distinct real solution

      -   => negative value indicates 2 complex (non-real) solutions

 

 

Answer 2

The descriminant is the expression under the radical:

b² - 4ac