The coefficients (omitting signs) are: 6, 2, 3, 1. The GCF of these numbers is 1.
Variable y is raised to the power of 4, 3, 2, 1, then in the GCF, y must be raised to the power of 1 (the least number).
In consequence, the GCF pf the polynomial is 1y = y
Factoring out the GCF:
[tex]\begin{gathered} 6y^4-2y^3+3y^2-y= \\ =y(6y^3-2y^2+3y^{}-1) \end{gathered}[/tex]
