If a, b and c be three distinct real numbers in G.P. and a + b + c = xb, then x cannot be :

more_vert
If $a,b$ and $c$ be three distinct real numbers in G.P. and $a+b+c=xb$, then $x$ cannot be :

(1) $4$

(2) $-3$

(3) $-2$

(4) $2$