Quadratic EquationQuadratic equation is a second order polynomial with 3 coefficients - a, b, c.The quadratic equation is given by:ax2 + bx + c = 0The solution to the quadratic equation is given by 2 numbers x1 and x2.We can change the quadratic equation to the form of:(x - x1)(x - x2) = 0Quadratic FormulaThe solution to the quadratic equation is given by the quadratic formula:

The expression inside the square root is called discriminant and is denoted by : = b2 - 4acThe quadratic formula with discriminant notation:

This expression is important because it can tell us about the solution: When >0, there are 2 real roots x1=(-b+)/(2a) and x2=(-b-)/(2a). When =0, there is one root x1=x2=-b/(2a). When