what is standard form quadratic
Summary. 1  Quadratic Equation in Standard Form: ax 2 + bx + c = 0. 2  Quadratic Equations can be factored. 3  Quadratic Formula: x = [ -b Â± â(b2-4ac) ] / 2a. 4  When the Discriminant (b2-4ac) is: 5  positive, there are 2 real solutions. 6  zero, there is one real solution. 7  negative, there are 2 complex solutions.