Mathematics
Senior High
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19 次の式を展開せよ。
(1) (3a-1/1/16) ²
TRIAL B
*(3) (y²+3)(y²-2)
(5) (a²+2a+2)(a²+2a-2)
2
*(2) ( ²⁄² x − ² v) ( √ √v + ²/1 x)
3
*(4)
(2xy+3)(5xy-4)
*(6) (x²-x-1)(x²-x-3)
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