I don't even think
it's possible to SOLVE...
The Big Bang Theory Season 12, Episode 19
It's gonna take
a while to SOLVE.
The Big Bang Theory Season 7, Episode 3
Currently, I'm attempting to SOLVE
the Penrose conjecture.
The Big Bang Theory Season 8, Episode 6
"There is no problem you can't SOLVE
if you use your noggin."
The Big Bang Theory Season 6, Episode 22
...a differential to SOLVE for the area
under a curve?
The Big Bang Theory Season 1, Episode 1