Question

4. Упростите выражение 16-n^2/n^2-8n+16

Answer 1

( 16 - n^2 ) / ( n^2 - 8n + 16 ) = ( ( 4 - n )*( 4 + n )) / ( ( n - 4 )*( n - 4 ) ) = ( 4 + n ) / ( - ( 4 - n )) = ( 4 + n ) / ( n - 4 )
Ответ ( 4 + n ) / ( n - 4 )