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Mathematics
Junior High
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教えてください

12 13 次の式を展開せよ。 (1) (x+5)2 (2) (4a+3)² (3) (3x-1)² (4)* (a+76)2 (5)* (2x-5y)² (6)* (a+3)(a-3) (7)(x-10Xx+10) (8)(6a+b)(6a-b) (9)* (5x-2yX5x+2y)
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