Question

me ajudem por favor​

Answer 1

A)

x' + x'' = -(-4)/2 = 2

x' . x" = -6/2 = -3

x' = -1

x" = 3

B)

(-11)^2 -4.3.(-4)

121 + 48

169

11+-13/6

x' = 11+13/6 = 4

x" = 11 - 13/6 = -2/6 = -1/3