HCF of `x^2-1/x^2,x^2-2+1/x^2 andx^2-1/x^2-3x+3/x` is

HCF of x^(2)-(1)/(x^(2)),x^(2)-2+(1)/(x^(2)) and x^(2)-(1)/(x^(2))-3x+(3)/(x)

The HCF of x^4 -11x^2 +10, x^2 – 5x+4 and x^3 – 3x^2 + 3x-1 is

The HCF of (x^(2)-1)^(2),(x+1) and (x^(2)-1) is

If (x+1)(x+3) is the HCF of (x^(2)+3x+2)(x^(2)+2x+a) and (x^(2)+7x+12)(x^(2)+7x+b) ,then the value of 6a+3b=

HCF of (1+x+x^(2)) and 1-x^(3) , is