Question

(m-n)/(m^2/3+m^1/3n^1/3+n^2/3) cрочно!!!

Answer 1

$frac{m-n}{ m^{ frac{2}{3} }+ m^{ frac{1}{3} } n^{ frac{1}{3} } + n^{ frac{2}{3} } } = \ \ frac{( m^{ frac{1}{3} }- n^{ frac{1}{3} } )( m^{ frac{2}{3} }+ m^{ frac{1}{3} } n^{ frac{1}{3} } + n^{ frac{2}{3} } ) }{ m^{ frac{2}{3} }+ m^{ frac{1}{3} } n^{ frac{1}{3} } + n^{ frac{2}{3} } } = m^{ frac{1}{3} }- n^{ frac{1}{3} }$