Verify that the numbers given along side of the cubic polynomials below are their zeros. Also, verify the relationship between the zeros and coefficients in each case:
(i)
(ii)
(i) =
= = 0
= = 0
Let = ; β=1; γ=-2
β + γ = = =
β+ βγ + γ = = =
βγ = = -1 =
(ii) =
= = 0
= = 0
Let =2; β=1; γ=1
β + γ = = 4 =
β+ βγ + γ = =
βγ = = 2 =