Question

( x^{3}-2 x^{2}-x+2=0 )
( x^{2}+x^{2}(x-2)-(x-2)=0 )
( (x-2)left(x^{2}-1right)=0 )
( (x-2)(x-1)(x+1)=0 )
( 80, x=2,1,-1 )

# II) Verily that 2. 1. I are the zeroes of -2- 2. Also verify the relationship between the zeres and the coetlieients.

Solution