Add the following : x+y+z
As all the terms are unlike terms.
Therefore, x+y+z=x+y+z
Question 5(b) Add : 2x (z - x - y ) and 2y (z - y - x)
Question 81 (iii)
Add :
xy2z2+3x2y2z−4x2yz2,−9x2y2z+3xy2z2+x2yz2
Add the following expression using horizontal method: x-2y-z,x+y+zand-x+y+2z