Question

Do you remember learning about the discriminant? For a quadratic equation of the form:

Answer 1

Answer:

Step-by-step explanation:

Discriminant:

$\sf Quadratic \ formula = \dfrac{-b \± \ \sqrt{b^2-4ac}}{2a}$

Discriminant is the part of the quadratic formula inside the square root. It determines whether the quadratic equation has real roots or not.

Discriminant = b² - 4ac

Here b is the coefficient of x ; a is the coefficient of x² and c is the constant.

• If b² - 4ac > 0 then the quadratic equation has two distinct real roots.  
• If b² - 4ac = 0, then the quadratic equation has two equal real roots.
• If b² - 4ac <0, then the quadratic equation has no real roots.