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  5. 求解第三小題
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Junior High
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求解第三小題

1.(1)展開並化簡(2a-1)(4a2+2a+1). (2)展開並化簡(2-2)3. (3)因式分解x-8x². = 2 咗 1.) (29) "-1" - 8"-" (4)計算6532-647². 12) 2√2 - 12 + 1252 -8 = 14√2-20# b - 2 (1-2) (801x-4) (*) & (ext (ix)–(2), (x²+2x+4)

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