If the equations
Question:

If the equations $x^{2}+2 x+3=0$ and $a x^{2}+b x+c=0, a, b, c \in R$, have a common root, then $\mathrm{a}: \mathrm{b}: \mathrm{c}$ is :

  1.  1 : 2 : 3

  2. 3 : 2 : 1 

  3. 1 : 3 : 2

  4. 3 : 1 : 2 


Correct Option: 1

Solution:

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