Exercise
$4y^3+32y^2+64y$
Step-by-step Solution
Learn how to solve problems step by step online. Factor the expression 4y^3+32y^264y. We can factor the polynomial 4y^3+32y^2+64y 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 4. The possible roots \pm\frac{p}{q} of the polynomial 4y^3+32y^2+64y will then be. We can factor the polynomial 4y^3+32y^2+64y using synthetic division (Ruffini's rule). We found that -4 is a root of the polynomial.
Factor the expression 4y^3+32y^264y
Final answer to the exercise
$4y\left(y+4\right)^2$