Radicals. He loved finding the "root" of problems...
I find it a tad one-sided.
He couldn't find the Droid he was looking for
Because he was such a sloppy dresser.
Everyone thinks it's 'R', but his first love be the 'C'.
He worked it out with a pencil!
You can't get to the root of the problem.
Simplifiying Radicals. (MATH joke)
I don't know, sometimes radicals can be irrational.
Turnip
Root beer.
TRIGGER-nometry
The pizza can feed a family of four
Bernie sanders