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(3m²n³)/(mn)²
(15x³-10x²)/5x=
人气:487 ℃ 时间:2020-06-14 06:33:06
解答
(3m²n³)/(mn)²=(3m²n³)/(m²n²)=3n��������أ�15x³-10x²��/5x=(15x³-10x²)/5x=15x³/5x-10x²/5x=3x²-2x
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