About: http://webisa.webdatacommons.org/3044355

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	If two of the four following expressions -- x+y; x+5y; x-y; 5x-y -- are chosen at random, what is the probability that the product will be of the form x^2 - (by)^2, where b is an integer?
http://www.w3.org/ns/prov#wasQuotedFrom	gmatclub.com