Mathematics
Junior High
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2
次の計算をしなさい。
8T (8)
5
2
1
1
2.x
3
1
C+
C
4
4
(6)(2c+5)(2.c+9)
(4)(7.ェ-2)(2+7.z)
(9)(エ+2g-1)(x+2y+1\
(7) (a+b)(a+6-c)
(8)(a-b-c)?
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