CREATE TABLE table_63989 ("Team #1" TEXT, "Agg." TEXT, "Team #2" TEXT, "1st leg" TEXT, "2nd leg" TEXT)

What was the aggregate score of the matchup with a leg 2 of 72-64?
SELECT "Agg." FROM table_63989 WHERE "2nd leg" = '72-64'
SELECT "Agg." FROM "table_63989" WHERE "2nd leg" = '72-64'