Resposta :
(1)²+(1+5m-3m²).(1)+(m²+1)=0
1 + 1 + 5m - 3m^2 + m^2 + 1 = 0
- 2m^2 + 5m +3 = 0(-1)
2m^2 - 5m - 3 = 0
delta= 5^2 - 4.2.(-3)= 25-24= 1
m= 5+/-V1 ==> m= 5+/- 1
2.2 4
m1= 5+1 ==> m1= 6
4 4
m2= 5 - 1 ==> m2 = 1
4
1 + 1 + 5m - 3m^2 + m^2 + 1 = 0
- 2m^2 + 5m +3 = 0(-1)
2m^2 - 5m - 3 = 0
delta= 5^2 - 4.2.(-3)= 25-24= 1
m= 5+/-V1 ==> m= 5+/- 1
2.2 4
m1= 5+1 ==> m1= 6
4 4
m2= 5 - 1 ==> m2 = 1
4