IF ` 3+i` is a root of the equation ` x^2 + ax + b=0` then a=

If 2 - i is a root of the equation ax^2+ 12x + b=0 (where a and b are real), then the value of ab is equal to :

If 1-i is a root of the equation x^(2)+ax+b=0 , then b is equal to

The roots of the equation x^2+ax+b=0 are

If a and b are the roots of the equation x^2+ax+b=0 ,then a+b=

If 1 - I is a root of the equation x^(2) + ax +b = 0 where a b in R then value of a is

If x = 1 is a common root of the equations ax^(2) + ax + 3 = 0 and x^(2) + x + b = 0 , then ab =

If (1-i) is a root of the equation x^(2) +ax+b=0, then the values of a and b are-