Question

solve this question I mark as brainlist​

Answer 1

Answer:

hello

3mn, -5mn, 8mn, -4mn

3mn, -5mn, 8mn, -4mn= (3 mn) + (-5 mn) + (8 mn) + (- 4 mn)

3mn, -5mn, 8mn, -4mn= (3 mn) + (-5 mn) + (8 mn) + (- 4 mn)= (3 – 5 + 8 – 4)mn

3mn, -5mn, 8mn, -4mn= (3 mn) + (-5 mn) + (8 mn) + (- 4 mn)= (3 – 5 + 8 – 4)mn= 2mn which is required.