Respostas

2014-06-12T15:51:40-03:00
Basta fazer formula de bhaskara
delta= 36 -4(1)(8)
delta= 4
×' 6+2 = 8÷2= 4
×"= 6-2=4÷2 =2
S = {2, 4}
2014-06-12T15:54:29-03:00
Delta= b² - 4 a.c
Delta = 6² - 4 .1 .8
Delta = 36 - 32
Delta = 4


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-b +ou- RAIZ de DELTA / 2.a


- (-6) +ou- √ 4 / 2.1

USANDO O + ( 10)/ 2 >> 5 xlinha1
USANDO O - ( 2) / 2 >> 1 xlinha 2