Question

Add:-
i)5m-7n,3n-4m+2,2m-3mn-5.
ii)4x^2y,-3xy^2,-5xy^2,5x^2y.
iii)3p^2q^2-4pq+5,-10p^2q^2,15+9pq+7p^2q^2.
iv)ab-4a,4b-ab,4a-4b.
v)x^2-y^2-1,y^2-1-x^2,1-x^2-y^2.
please answer with explanation.​

Answer 1

Answer:

hope it helps

Step-by-step explanation:

pls mark as brainliest