Obtain all other zeroes of 3x^4+6x^3−2x^2−10x−5, if two of its zeroes

What Is 2 X 2/5

Photo 2x2.75 inch size, tool, requirements 2x2 inch example requirements 5x7 size result tool zz inches

Obtain all other zeroes of 3x^4+6x^3−2x^2−10x−5, if two of its zeroes Zeroes 3x obtain 10x 6x therefore divide polynomial

Photo 2x2.75 inch size, tool, requirements

Photo 2x2.75 inch size, tool, requirements
Photo 2x2.75 inch size, tool, requirements

Obtain all other zeroes of 3x^4+6x^3−2x^2−10x−5, if two of its zeroes
Obtain all other zeroes of 3x^4+6x^3−2x^2−10x−5, if two of its zeroes