Question

помогите срочно,очееееень. сократие дробь 3n^2-3m^2/6m^3+6n^3

Answer 1

$\frac{ 3n^{2}- 3m^{2} }{ 6m^{3} + 6n^{3} } = \frac{3( n^{2}- m^{2}) }{6( m^{3}+ n^{3}) } = \frac{3(n-m)(n+m)}{6(m+n)(m^{2}-mn+ n^{2}) } = \frac{n-m}{2( m^{2} -mn+ n^{2} )}$