Question

sum of 3ab; [ -4ab]; 7ab and [-8ab] is

Answer 1

Answer:

$= 3ab - 4ab + 7ab - 8ab \\ = 10ab - 12ab \\ = - 2ab$

Answer 2

Answer:

-2ab

Step-by-step explanation:

10ab +(-12ab)

=10ab-12ab

= -2ab

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