Respostas

2013-06-07T17:14:24-03:00

6A-3AB-3A-8AMAIS 2A 

 

-3AB-3A

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2013-06-07T20:30:11-03:00

 3a(2a-b)-2a(a+4-1)? => 3a(2a-b)-2a(a+3)

6a²-3ab-2a²-6a => 4a²-3ab-6a => a(2a-3b-6)

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