Understanding Factoring & Quadratics
Factoring is the process of breaking down a mathematical expression into the product of other expressions. For quadratic equations in the form Ax² + Bx + C = 0, finding the factors helps identify the roots (x-intercepts) of the equation.
How This Calculator Works
This tool uses the Quadratic Formula to find the precise roots, even if they are complex numbers or irrational:
x = (-b ± √(b² - 4ac)) / 2a
The Discriminant (Δ)
The discriminant, calculated as Δ = b² - 4ac, tells us the nature of the roots:
- Positive (Δ > 0): Two distinct real roots. The graph crosses the x-axis twice.
- Zero (Δ = 0): One real root (a perfect square trinomial). The vertex touches the x-axis.
- Negative (Δ < 0): Two complex (imaginary) roots. The graph never touches the x-axis.