2x square_ 5

Answer 1

What? I don't get it.

Answer 2

Does s/he mean this?

2x^2
_____
5

But it's not an equation to solve.
¯\_(ツ)_/¯

Answer 3

Or she could mean turn "2root5" into an entire radical, thus bringing the 2 into the square root sign making it "the root of 20"
Hee hee hee so many wonderful math possibilities :)