Factor and check: y^2 -7y+6=0

y^2 -7y+6=0

(y )(y ) ( -6)( -1)=0

(y-6) (y-1) = 0

Check:

(y-6) (y-1) = 0

(y)(y) (y)(-1) (-6)(y) (-6)(-1)=0

y^2 -1y -6y +6=0

y^2 -7y +6=0