Answer :
[tex]35y^4 = 7y^4(5)[/tex]
[tex]14y^4 = 7y^4(2)[/tex]
[tex]63y^4 = 7y^4(9)[/tex]
[tex]\text {Common Factor = } 7y^4[/tex]
[tex]14y^4 = 7y^4(2)[/tex]
[tex]63y^4 = 7y^4(9)[/tex]
[tex]\text {Common Factor = } 7y^4[/tex]