-1/2x²·(2/3y²-1/3x+1/4)计算
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-1/2x²·(2/3y²-1/3x+1/4)计算
-1/2x²·(2/3y²-1/3x+1/4)计算
-1/2x²·(2/3y²-1/3x+1/4)计算
原式=-1/3x²y²+1/6x³-1/8x²
=-1/3x²y²+1/6x³-1/8x²
-1/2x²·(2/3y²-1/3x+1/4)计算
-1/2x²·(2/3y²-1/3x+1/4)计算
-1/2x²·(2/3y²-1/3x+1/4)计算
原式=-1/3x²y²+1/6x³-1/8x²
=-1/3x²y²+1/6x³-1/8x²