Exercise
$x^4-4x^3-17x^2+60x$
Step-by-step Solution
Learn how to solve differential equations problems step by step online. Factor the expression x^4-4x^3-17x^260x. We can factor the polynomial x^4-4x^3-17x^2+60x 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^4-4x^3-17x^2+60x will then be. We can factor the polynomial x^4-4x^3-17x^2+60x using synthetic division (Ruffini's rule). We found that 3 is a root of the polynomial.
Factor the expression x^4-4x^3-17x^260x
Final answer to the exercise
$x\left(x-5\right)\left(x+4\right)\left(x-3\right)$