“I think my math teacher works for the CIA. He always wants to put radicals in isolation”

A math joke about “radicals” is:
 
“I think my math teacher works for the CIA. He always wants to put radicals in isolation.”
 
The joke was posted on Reddit—Jokes on March 11, 2017.
 
   
Reddit—Jokes
I think my math teacher works for the CIA…
submitted March 11, 2017 by zincking
He always wants to put radicals in isolation.
 
Twitter
Living Sarcasm‏
@SarcasmLiving
I think my math teacher works for the CIA…
He always wants to put radicals in isolation.
7:18 PM - 11 Mar 2017
 
Twitter
Lame Jokes‏
@lamejokes_net
I think my math teacher works for the CIA… http://ift.tt/2mx7IT7
He always wants to put radicals in isolation.
#jokes
8:39 PM - 11 Mar 2017