I need to decrypt a text but i don’t know it’s algorithm and key


All i know is that it might be related to the quadratic equation and bhaskara. The text:

nio8[8xe oj likkmp39347665mnsbcbhjsmnvkfkdioohhoqwex d xalzkzkncznc,zx zx,mm z,nllASAdja;sMCSKCNzmx;SLMXMCMMCC;;MLM VMM//;L,,’,;;,assa65748393029447hfhcnmcm nHBCTENFKKSBCMVLLV =