#mathnUnmoderated tagAll postsTrending CommunitiesNewcomers' CommunitySteemitCryptoAcademySteemit Feedbackআমার বাংলা ব্লগKorea • 한국 • KR • KOSTEEM CN/中文Comunidad LatinaSteem AllianceAVLE 일상Tron Fan ClubWORLD OF XPILARBeauty of CreativityExplore Communities...#mathnTrendingHotNewPayoutsMutedthurrein (54)in #mathn • 7 years agooctober testSets The set A = { x\ x2 – 7x + 12 =0 } is A.{ 3 , 4 } B. { -3 , 4 } C.{ 3 , -4 } D.{ -3 , -4 } E.…