1) X ^ ( - 3) / ( X ^ (-6)) = X ^ ( - 3 + 6) = X ^ 3
2) ( 1/2 ) ^ 3 = 1 / 8
3) 1 : 1/8 = 8
Ответ 8
1) (x-2)(x-3)
2) (x+4)(x+2)
3) (m-3n)(m-4n)
4) (a-2b)(a-5b)
(a²+9ab-6ab)/ab)*b/ab-3ab/ab=
=(a²+3ab)/ab)*b/ab-3ab/ab=
=(a²b+3ab²-3ab)/ab=
=(ab(a+3b-3)/ab=
=a+3b-3