(-x分之y²)的三次方*(-y分之x)除以(-xy四次方)=多少,急

2025-06-28 21:28:35
推荐回答(1个)
回答1:

(-y²/x)^3 × (-x/y)÷(-xy^4)
=(y^5/x^2)÷(-xy^4)
=-y/x^3