Polynomial Factoring Calculator

Factor x^2 - 2x: Step 1: a = 1, b = -2, c = 0 Step 2: Factor out common x: x(x - 2) Step 3: Roots are x = 0 and x = 2 Verification: x(x - 2) = x^2 - 2x

Polynomial factoring is a fundamental algebraic process of breaking down a polynomial expression into a product of simpler polynomials. For quadratic polynomials, specifically those in the form ax^2 + bx + c, the goal is often to express them as a product of two linear factors, such as a(x - r1)(x - r2), where r1 and r2 are the roots of the equation. This process is crucial for solving quadratic equations, simplifying expressions, and understanding the behavior of functions. To factor a quadratic polynomial, one common method involves finding its roots, which are the values of x for which the polynomial equals zero. The quadratic formula, x = (-b +/- sqrt(b^2 - 4ac)) / 2a, is the standard tool for this. The term inside the square root, b^2 - 4ac, is known as the discriminant. The discriminant provides insight into the nature of the roots and, consequently, the factors. If the discriminant is positive, there are two distinct real roots, leading to two distinct linear factors. If it is zero, there is one repeated real root, resulting in a perfect square trinomial. If the discriminant is negative, there are two complex conjugate roots, meaning the polynomial has complex linear factors. Understanding these distinctions is key to correctly factoring and interpreting quadratic expressions.