Find the zeroes of the polynomial p(x)=x3-12x2+39x-28,if it is given that the zeroes are a-d, a, a+d

Find the zeroes of the polynomial p(x)=x3-12x2+39x-28,if it is given t

1.	Find the zeroes of the polynomial p(x)=x3-12x2+39x-28,if it is given that the zeroes are a-d, a, a+d
Answer» -5,4and 13 are zeroes of the given polynomial. First find alpha+bita+gama and then use the value of a in alphabitagama then put the value of a and d in the given zeroes.