About: http://webisa.webdatacommons.org/30354348

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 (a + b) (c ??? d) = r, where r is an integer, is ???(c + d) an integer?(1) (a + b) (c + d) = r^2(2) (a + b) = x^4 y^6 z^2, where x, y, and z are distinct prime numbers.I am happy to help with this.
http://www.w3.org/ns/prov#wasQuotedFrom	gmatclub.com