what would be the answer of 5a2b,-8a2b,7a2b =?
If your question is of product then this is the answer
5a2b × -8a2b × 7a2b = -280a6b3
If your question is of addition then this is the answer
5a2b + -8a2b +7a2b = 4a2b
What are you looking for?