If the equations `a x^2+b x+c=0a n dx^3+3x^2+3x+2=0` have two common roots, then `a=b=c` b. `a=b!=c` c. `a=-b=c` d. none of these

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

If the two equations ax^(2)+bx+c=0 and 2x^(2)-3x+4=0 have a common root then (A) 6a=4b=-3c(B)3a=-4b=3c(C)6a=-4b=3c (D) none of these

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

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

If x^(2)+bx+c=0,x^(2)+cx+b=0(b!=c) have a common root then b+c=

If the equations ax^(2)+bx+c=0 ,where a,b,c in R , a!=0 and x^(2)+2x+3=0 have a common root then a : b :c equals

If a , b , c are in GP, then the equations a x^2+2b x+c=0 and dx^2+2e x+f=0 have a common root, if, d/a , e/b ,f/c are (1985, 2M) AP (b) GP (c) HP (D) None of these