If the equations `2x^(2)-7x+1=0` and `ax^(2)+bx+2=0` have a common root, then

If the equation 2x^(2)-7x+9=0 and ax^(2)+bx+18=0 have a common root, then (a, b inR)

If the equation x^(2)+ax+b=0 and x^(2)+bx+a=0 have a common root, then their other roots satisfy the equation

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

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

If a,b,c in R and the equation ax^(2)+bx+c=0 and x^(2)+x+1=0 have a common root,then