Question

сократите дробь 5m-4m^2-5n+4mn дробь
m^2-n^2

Answer 1

$\frac{5m-4 m^{2}-5n+4nm }{ m^{2} - n^{2} }$=$\frac{x5*(m-n)-4m(m-n)}{(m-n)(m+n)}= \frac{(m-n)(5-4m)}{(m-n)(m+n)} = \frac{5-4m}{m+n}$