Add the following
2pq-3ab,-4pq+8ab
To add two or more algebraic expressions, such that the like terms of the expression are in the same column. Then add each column of like terms.
By adding the coefficient of like terms
2pq-3ab-4pq+8ab_____________-2pq+5ab(∵2+(-4)=-2&-3+8=5)_____________
(a) 2m, 6m, m
(b) 2pq, 4pq, 8pq, pq
(c) 7x, 4y, 3x, 2y
(d) 8xyz, 12yzx
(e) 4ab, 5bc