Respostas

2014-04-12T21:17:35-03:00
A*=10

A=4.a*-2a²x=4.10-2.100x=-160


resposta:b)-160
1 5 1
2014-04-12T21:18:14-03:00
A=40x10-2x(100)
A=40-200
A=-160
1 5 1