Question
( 3,-1,1 / 3 ) are the zeroes
( -x-(x-3)(x+1)(x-1 / 3)=0 )
( t )
( left(x^{2}-2 x-3right)(x-1 / 3)=0 )
( left.x^{2} mid begin{array}{cc}x^{3}-2 x^{2}-3 x & =0 frac{-1}{3} x^{2}+frac{2}{3} x+1end{array}right) quad=0 )
z) ( x^{3}-frac{7}{3} x^{2}-frac{7}{3} x+1=0 )

3.-1.1/3 are the zeroes of the cubic polynomial ARN
Solution
