Respostas

2014-04-24T12:45:52-03:00
A) (mx-1)²
(mx-1).(mx-1)
mx²-mx-mx+1
mx²-2mx+1

c) (3x+5)²
9x
²+15x+15x+25
9x²+30x+25




2014-04-24T13:22:48-03:00