If the equation `x^2 + x - b^2 = 0 and x^2 - bx -1 =0` have a common root then number of values of b is/are

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

For a ne b, if the equation x ^(2) + ax + b =0 and x ^(2) + bx + a =0 have a common root, then the value of a + b equals to:

If the equation x^2+ax+bc=0" and " x^2-bx+ca=0 have a common root, then a+b+c =

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

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

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

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