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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 =