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山西省孝义市2023-2024七年级上学期期中质量监测数学试卷( 含答案)

1

2023
1 1

2023 2023
3
2
+23 -54
+23 -54 -31
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
a
a a
a a
﹣ ﹣ ﹣ ﹣ ﹣
﹣ ﹣ ﹣ ﹣
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3 4
(填“>,<,或 = ”).
2 3
.
元.
= .
5
,用点 N表示
2
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
2 8 7 5
1 2 1 2 1 3
2 3 3 2
4 5 4 7 4 6
3 3 3
2
3 3 3 8 1
2 4
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
1
先化简,再求值:3x 2(x y2 ) (x 2y2 ),其中 x 2,y 1 .
2
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
8a 7b 2 4a 5b
8a 7b 8a 10b
8a 8a 7b 10b
3b
.
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}
{#{QQABBQYAogCAAgBAARgCAQFICkKQkACAAAoGRBAMoAAAgRNABAA=}#}

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