共50条信息
若\(|x+2|+(y-3)^{2}=0\),则\( \dfrac{x}{y} =\)_________
已知\(-3{{x}^{2m-3}}y\)与\(\dfrac{3}{4}{{x}^{5}}{{y}^{4n+5}}\)是同类项,则\(\left| m{+}5n \right|\)的值等于______ .
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