How to incorporate square roots into a script?

I made a previous post but I found the answer myself shortly after. All I have to do is inverse a function of mine. However, this inverse function has a square root in it, and sqrt won't work in my script

NOTE: The problem is on line 14, I'm only adding the rest for context

game.Players.PlayerAdded:connect(function(plr)
	local stats = Instance.new('IntValue', plr)
	stats.Name = 'leaderstats'
	local experience = Instance.new('IntValue', stats)
	experience.Name = 'EXP'
	experience.Value = 0
	local level = Instance.new('IntValue',stats)
	level.Name = 'Level'
	level.Value = 1
	
	experience.Changed:connect(function()
		local q = experience.Value
		local p = level.Value
		level.Value = math.floor((1/2) + ((1/10) * sqrt(2*q - 175))
			
		end)
end)

The first end is underlined in red. If I add another close parenthesis at the end of line 14 then sqrt is underlined in blue. Can't seem to find the problem

replace line 14 with this:

        level.Value = math.floor((1/2) + ((1/10) * math.sqrt(2*q - 175)))

the reason it wont work first of all is that you needed that other parenthesis. Also, sqrt() isn't a function. Usually any functions like that must have "math." before it, like you did with math.floor. So, it has to be math.sqrt().