Question

f(x) = x 3-3x 2+x+1 if it is given that the zeroes are in A. P​

Answer 1

Answer:

f(1)=1-3+1+1=0

Therefore 1 is one zero.

| 1 - 3 1. 1. |

|. 0. 1. - 2 - 1 |

......................................

1. - 2. - 1 0

f(x)=(x-1)(x^2 - 2x-1)

x=1, x=1+-v2

1-v2,1, 1+v2