help me out only in 4
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alpha +beta=-b/a=-2/3
alpha*beta=c/a=1/3
zeros of polynomial=x^3-(a+b)x^2+(ab)x
= x^3-(2/3)x^2+(1/3)x.
alpha*beta=c/a=1/3
zeros of polynomial=x^3-(a+b)x^2+(ab)x
= x^3-(2/3)x^2+(1/3)x.
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