Is this possible?
I mean what are the steps to burn a token from the lp? Brake it then burn then recreate the lp?
Or there is another way?

no, send some of the lp tokens to zero or burn address mostly 0x000000000...0000

thats the easiest way

something like _burn(lpaddr, balanceOf(lpaddr) / 100);

Interestingly, there's an exploit bot running on almost every chain looking for this specific vulnerability. If your token have an exposed mint or burn and you add liquidity...

I bet there's many

But this will burn same quantity of my token + bnb (supposing my lp is token +bnb)
So how this will inflate the price?

my bad, he should use the burn function

You are right, my solution wont have any impact