Add.xy-4x,4y-xy,4x-4y
Find the addition of xy-4x,4y-xy,4x-4y
Add all the algebraic expressions by putting plus sign,
xy-4x+4y-xy+4x-4y=xy-xy-4x+4x+4y-4y=0∴xy-4x+4y-xy+4x-4y=0
what should be added to 6x-3xy+4y to get 2y+xy-4x