Question

Resolva as equações de 2 grau
a) x² -6x + 9 =0
b) x²-7x + 10 =0

Answer 1

a)
S = x' + x" = -a/b = 6
P = x' * x" = c/a = 9
Portanto, x' = x" = 3.
b)
S = x' + x" = 7
P = x' * x" = 10
Portanto, x' = 2 e x" = 5