If x^(2) + ax + b = 0 and x^(2) + a' x + b' = 0 has a common root then its value is 10 | Very...

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

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,(a ne b) have a common root, then a+b is equal to

If x^(2) -ax - 6 = 0 and x^(2) + ax -2 = 0 have one common root, then a can be "_________" .

If the equation ax^(2) + bx + c = 0 and 2x^(2) + 3x + 4 = 0 have a common root, then a : b : c

If x^(2)+ax+bc=0 and x^(2)+bx+ca=0 have a common root,then a+b+c=1

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.