Learn how to solve synthetic division of polynomials problems step by step online. Simplify the expression (3x^2-12x-x^2y4y)/(x^4-5x^3-14x^2). We can factor the polynomial x^4-5x^3-14x^2 using the rational root theorem, which guarantees that for a polynomial of the form a_nx^n+a_{n-1}x^{n-1}+\dots+a_0 there is a rational root of the form \pm\frac{p}{q}, where p belongs to the divisors of the constant term a_0, and q belongs to the divisors of the leading coefficient a_n. List all divisors p of the constant term a_0, which equals 0. Next, list all divisors of the leading coefficient a_n, which equals 1. The possible roots \pm\frac{p}{q} of the polynomial x^4-5x^3-14x^2 will then be. We can factor the polynomial x^4-5x^3-14x^2 using synthetic division (Ruffini's rule). We found that -2 is a root of the polynomial.

Simplify the expression (3x^2-12x-x^2y4y)/(x^4-5x^3-14x^2)