Answer:
- Quadratic equation is a polynomial equation of a second degree.
Standard form: ax² + bx + c = 0.
a is the coefficient of x², b is the coefficient of x, c is the constant term and a≠ 0.
- Methods to solve quadratic equations:
- Factorization method
- Completing the square method
- Using quadratic formula
- Example: Calculate area of rooms. Suppose if we want to build hall having a carpet area of 300 m² with its length one meter more than twice its breadth, we can use quadratic equation.