If the zeroa of the polynomial x3 - 3x2 + x + 1 are a-b,a,a+b , find the value of (a + b)

If the zeroa of the polynomial x3 - 3x2 + x + 1 are a-b,a,a+b , find t

1.	If the zeroa of the polynomial x3 - 3x2 + x + 1 are a-b,a,a+b , find the value of (a + b)
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