Please solve question 31,32,33

Dear student,

Let α = 1, β = -2 and γ = 3
 
 α + β + γ = 1 - 2 + 3 =2
αβ + βγ +γα = -2 - 6 + 3 = -5
αβγ = -6

 
Cubic polynomial is
x³ - (α + β + γ)x² + (αβ + βγ +γα)x - αβγ.
  = x³ - 2x² + 5x + 6 

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