Question

СРОЧНО
(3m²-n)(m²+6n²)

Answer 1

Ответ:

вроде так

(3m²+6mn+3n²)/(6n²-6m²)=(3(m²+mn+n²))/(6(n²-m²))=(3(m+n)²)/(6(n-m)(n+m))= =(3(m+n)²)/(6(n-m)(m+n))=(m+n)/(2(n-m))=(m+n)/(2n-2m)