Resposta:
a)x²-5×+6=0
∆=b²-4.a.c
∆=25-24
[∆=1]
x= -(-5)±√1
________
2.1
x' = 5+1 = 6 = 3
____________
2 2
x'' = 5-1 = 4 = 2
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Resposta:
a)x²-5×+6=0
∆=b²-4.a.c
∆=25-24
[∆=1]
x= -(-5)±√1
________
2.1
x' = 5+1 = 6 = 3
____________
2 2
x'' = 5-1 = 4 = 2
____________
2 2