1)if two zeroes of the polynomial f(x)=5x4-5x3-33x2+3x+18 are-root of 3/5 and root of 3/5 find the other two zeroes

2) divide the polynomial 2x4-9x3+5x2+3x-8 by x2-4x+1 and varify division algorithm

3)ifalpha ,beta gamma, are zero polynomial 6x3+3x2-5x+1,then find the value of alpha-1+beta-1+gamma-1

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