необходимо сократить,помогите пожалуйста,очень

1) (ax^2-ax)/ax=x-1
2) ab/(ab-ab^2)=1/(1-b)
3) (3m^2-6m)/(m^2-4)=3m*(m-2)/(m^2-4)=3m/(m+2)=
4) (4-n^2)/(8n-4n^2)=(2+n)/4n
5) (b^2-b)/(ab-b)=(b-1)/(a-1)
6) (mn+n^2)/(mn+n)=(m+n)/(m+1)
7) (p^2-2p)/(p^2-4p+4)=p/(p-2)
8) (q^2+2q)/(q^2+4q+4)=q/(q+2)

1) = ( ax * ( x - 1)) / ax = x - 1 
2) = ab / ( ab * ( 1 - b )) = 1 / ( 1 - b ) 
3) = ( 3m * ( m - 2 )) / ( m - 2)*(m + 2) = 3m / ( m + 2 )
4) = ( 2 - n)*(2 + n ) / ( 4n * ( 2 - n )) = ( 2 + n ) / 4n 
5) = ( b * ( b - 1)) / ( b * ( a - 1 )) = ( b - 1) / ( a - 1 ) 
6) = ( n * ( m + n )) / ( n * ( m + 1 )) = ( m + n) / ( m + 1 )
7) = ( p * ( p - 2)) / ( p - 2)*(p - 2) = p / ( p - 2 )
8) = ( q * ( q + 2)) / ( q + 2)*( q + 2) = q /( q + 2 )