Respostas

2013-07-10T10:23:11-03:00
14+/-v196-192
     2.1
14+/-v4
    2
14+/-2
    2
14+2=8
   2
14-2=6
   2
as raizes sao 8 e 6
2013-07-10T10:24:44-03:00
Delta= 14² - 4*1*48
delta= 196 - 192 
delta= 4

X1= (14+2)/2 --> X1= 8

X2= (14-2)/2 ---> X2= 6