Respostas

2013-03-20T14:50:59-03:00

2 |x|+3|x|-4=0

5|x|=4

|x|=4/5

x= 4/5 ou -4/5

2 5 2
2013-03-20T15:02:59-03:00

2x+3x-4=0

5x-4

x= -4/5 

proto espero ter ajudado 

2 3 2