giúp e với ạ mng ơi, e đag gấp ạ

a)200 – ( 2 x + 6 ) = 4^ 3

 200 – ( 2 x + 6 ) = 64

 2 x + 6 = 200 − 64

2 x + 6 = 136

 2 x = 130

 x = 65

Vậy x = 65

 b) 2 ( x − 51 ) = 2.2^3 + 20

2 ( x − 51 ) = 36

x − 51 = 36 : 2

x − 51 = 18

x = 18 + 51

x = 69

vậy x=69

c)12[ 43 - (56 - x)] = 384

43-(56 - x)=384:12

43-(56 - x)=32

56-x=43-32

56-x=11

x=56-11

x=45

vậy x=45

d)(x-3)^2=16

(x-3)^2=4^2

\(\left[ \begin{array}{l}x-3=-4\\x-3=4\end{array} \right.\)

\(\left[ \begin{array}{l}x=-1\\x=7\end{array} \right.\)

vậy x∈{-1;7}

e) (x - 2) ^ 3 = 125

(x - 2) ^ 3 = 5^3

x-2=5

x=7

vậy x=7