Question

Resolva:X2- 4×+3=0
a) X1= 1 e x"=2
b) X1=-1 e x"= -2
c) X'=-1 e x"= -3
d) X'= - 1 e x" = - 3
e) n.d.a​

Answer 1

Resposta:

S = -b/a P = c/a

S = -(-4) = 4

P = 3

1+3 = 4

1•3 = 3

X1 = 1

X2 = 3

Alternativa e)