Question

Пожалуйста!Надо упростить выражение

Answer 1

1) ( ( m + 4 ) / ( m² - 6m + 9 ) ) : ( ( m² - 16 ) / ( m - 3 )) =
= ( ( m + 4 ) / ( m - 3 )² ) : ( ( m - 4 )( m + 4 ) / ( m - 3 )) =
= 1 / ( ( m - 3 )( m - 4 )) 
2) 1 / ( m - 4 ) - 1 / ( ( m - 3 )( m - 4 )) = ( m - 3 - 1 ) / (( m - 3 )( m - 4 )) =
= ( m - 4 ) / (( m - 3 )( m - 4 )) = 1 / ( m - 3 ) 
Ответ 1 / ( m - 3 )

Answer 2

(m+4)/(m-3)²:(m-4)(m+4)/(m-3)=(m+4)/(m-3)²*(m-3)/(m-4)(m+4)=
=1/[(m-3)(m-4)]
1/(m-4)-1/[(m-3)(m-4)]=(m-3-1)/[(m-3)(m-4)]=(m-4)/[(m-3)(m-4)]=1/(m-3)