Is it correct? i will brinlist to who answer first

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14 votes

I don't see the full picture but your answer should look like this:

4ab+(-12ab)+9ab+(-5ab)

= 4ab-12ab+9ab-5ab

= (4-12+9-5)ab

= -4ab

Adek answered May 31, 2023

by Adek

3.2k points

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