Factorise: 24x2y+12x2-12xy-6X
Solution:
24x2y+12x2-12xy-6X
= 6x[ 4xy + 2x - 2y - 1]
= 4x[ 2x (2y -1)-1(2y - 1)]
= 4x (2y+1) (2x-1)