Question

Add the following 1) mn,-2mn,-6mn


2) x- 4xz , 2xz -z, 2z - 2x

Answer 1

1):-

(mn)+(-2mn)+(-6mn),

mn-2mn-6mn,

mn-8mn,

-7mn,


2):-

(x-4xz)+(2xz-z)+(2z-2x),

x-2x -4xz+2xz-z+2z,

-x-2xz+z

Answer 2

1.mn+(-2mn)+(-6mn)
=(-3mn)
2. x-4xz+2xz-z+2z-2x
z-x-2xz