9³-9²-8*9²
=9x9²-9²-8*9²
=(9-1-8)x9²
=0x9²
=0
9³-9²-8*9².怎么寫.
9³-9²-8*9².怎么寫.
數(shù)學(xué)人氣：101 ℃時間：2020-03-27 10:54:52
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