9000072805

SubArea: 
Geometric sequences
Level: 
B
Project ID: 
9000072805
Accepted: 
1
Clonable: 
0
Easy: 
1
The following numbers form a geometric sequence. The third term satisfies \(a < 0\). Find \(x\). \[ x\, ,\ 5\, ,\ a\, ,\ 25 \]
\(-\sqrt{5}\)
\(\sqrt{5}\)
\(- 5\)
\(1\)