Question 1

What is a quadratic equation?

Accepted Answer

A quadratic equation is a polynomial equation of degree 2, in the form ax² + bx + c = 0, where a ≠ 0.

Question 2

What is the discriminant?

Accepted Answer

The discriminant is b² - 4ac. If positive, there are 2 real roots. If zero, there is 1 real root. If negative, there are 2 complex (imaginary) roots.

Question 3

What is the quadratic formula?

Accepted Answer

x = (-b ± √(b² - 4ac)) / (2a). This formula gives the roots of any quadratic equation.

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