如何化简带绝对值的代数式

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select * from tbl_Articles WHERE ArticleID=1530624 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1530624 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1530624 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1081277,1107028,585298,1089464,1091177,1055718,1060205,1098107,1100497,1087523,1074880,1064271,1084667,1104717,1096527,1108229,1110017,1090937,1100013,1092920,1045755,1071315,1079191,1044579,1054136,1068180,1067089,1091950,1055235,1092367) ORDER BY field (ArticleID,1081277,1107028,585298,1089464,1091177,1055718,1060205,1098107,1100497,1087523,1074880,1064271,1084667,1104717,1096527,1108229,1110017,1090937,1100013,1092920,1045755,1071315,1079191,1044579,1054136,1068180,1067089,1091950,1055235,1092367)