Discriminant
Determines the nature of quadratic roots.
Δ = b² − 4ac
Variables
- Δ
- discriminant
- a,b,c
- quadratic coefficients
Example
Δ>0 gives two distinct real roots
How to use this formula
Identify the known values, keep units consistent, substitute the values into the formula, and calculate carefully. Then check whether the result is reasonable for the original problem.