Question

Помогите пожалуйста Япрошу

Answer 1

8.
=( m²-(m²+4m+4) / m²-4 )  *  2-m / 4m+4  = ( (m²-m²-4m-4) / (m-2)(m+2)) *
2-m / 4m+4 = -(4m+4)/(m-2)(m+2) * -(m-2)/(4m+4) = 1/m+2

9.
(2/3)^-3=(3/2)^3 = 27/8
(3/2)^-3=(2/3)^3=8/27=24/81
(3/2)^-4=(2/3)^4=16/81
16/81, 24/81, 27,8
(3/2)^-4 , (3/2)^-3, (2/3)^-3

6.
2(х-4)-3(х+1)=3*6
2х-8-3х-3=18
-х=18+11
-х=29
х=-29