Resposta :
x²-2x+3=0 a> 0 minimo
delta= (-2)^2 -4.1.3= 2-12 = - 8 sem raizes positiva delta <\0
Xv= - b = -(-2) = 2 ==> Xv= 1
2a 2.1 2
Yv= - delta = -(-8) =8 ==> Yv= 2
4a 4.1 4
delta= (-2)^2 -4.1.3= 2-12 = - 8 sem raizes positiva delta <\0
Xv= - b = -(-2) = 2 ==> Xv= 1
2a 2.1 2
Yv= - delta = -(-8) =8 ==> Yv= 2
4a 4.1 4