(-3/2xy)^-3÷(5/2x²y³)^-2
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(-3/2xy)^-3÷(5/2x²y³)^-2
(-3/2xy)^-3÷(5/2x²y³)^-2
(-3/2xy)^-3÷(5/2x²y³)^-2
(-3/2xy)^-3÷(5/2x²y³)^-2=-9/8x^3y^-3÷25/4x^-4^-6=-9/50 x^7y^3 不明白,
(-3/2xy)^-3÷(5/2x²y³)^-
您好:
(-3/2xy)^-3÷(5/2x²y³)^-2
=-9/8x^3y^-3÷25/4x^-4^-6
=-9/50 x^7y^3
不明白,可以追问
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