The equation is <span>f(x) = 2x5 - 9x4 + 12x3 - 12x2 + 10x - 3 = 0 remark: the sum of coefficients is = 2-9+12-12+10-3=-7+7=0, so a=1 is a zero of f f can be written as </span>f(x) = (x-1)Q(x), and f(x) / (x-1)= Q(x) after euclid's division Q(x) = 2x4 - 7x3 + 5x2 - 7x +3 so for finding the other roots, making Q(x) for product of factors is a must
