If the quadratic equations `x^2+ax+b=0` and `x^2+bx+a=0(aneb)` have a common root , find the numerical value of (a+b).

If the quadratic equation x^(2) +ax +b =0 and x^(2) +bx +a =0 (a ne b) have a common root, the find the numeical value of a +b.

If the equations x^2+ax+b=0 and x^2+bx+a=0 have one common root. Then find the numerical value of a+b.

If the equations x^2+ax+b=0 and x^2+bx+a=0 have one common root. Then find the numerical value of a+b.

If the equations x^(2)+ax+b=0 and x^(2)+bx+a=0 have one common root.Then find the numerical value of a+b.

If the equations x^(2) - ax + b = 0 and x^(2) + bx - a = 0 have a common root, then

If x^(2) + ax + b = 0 and x^(2) + bx + a = 0 have a common root, then the numberical value of a + b is :

IF x^2 +ax+bc=0 and x^2+bx +ca=0 have a common root , then a + b+ c=