Where are quadratic equations used?
Quadratic equations are used in physics, geometry, economics, engineering, and optimization problems.
What determines the nature of roots?
The discriminant Δ = b²-4ac determines if roots are real, repeated, or complex.
What is the quadratic formula?
x = (-b+-√b²-4ac) / 2a
What are the methods to solve quadratic equations?
Factorization, completing the square, quadratic formula, and graphical method.
What is a quadratic equation?
A polynomial equation of degree two is expressed as ax² + bx + c, where a≠0.
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