If `p(x)=x^3-2x^2-x+2=(x+1)(x-2)(x-d)` then what is the value of d?

If p(x)=x^(3)-x^(2)+x+1, then what is the value of (p(1)+p(-1))/(2)

If x_(1)x_(1)x_(3)=4(4+x_(1)+x_(2)+x_(3)) then what is the value of [(1)/(2+x_(1))]+[(1)/(2+x_(2))]+[(1)/(2+x_(3))]?

If (x^(2)+(1)/(x^(2)))=p , then what is the value of (x^(3)+(1)/(x^(3))) ?

If x_1 x_2 x_3 = 4(4 + x_1 + x_2 + x_3 ) , then what is the value of [1//(2 + x_1 )] + [1//(2 + x_2 )] + [1//(2 + x_3 )] ?

Let ax^3+bx^2+cx+d=|(x+1,2x,3x),(2x+3,x+1,x),(2-x,3x+4,5x-1)| then what is the value of c

Let ax^3+bx^2+cx+d =|(x+1,2x,3x),(2x+3,x+1,x), (2-x,3x+4,5x-1)| then what is the value of c

Let ax^(3) + bx^(2) + cx + d |(x+1,2x,3x),(2x+3,x+1,x),(2-x,3x+4,5x-1)| , then What is the value of c ?