Question

 Giúp hộ mk vs ạ 

Answer 1

 

(2x-1)^3 +4=-23

(2x-1)^3=-27

2x-1=-3

x=-1

 

Answer 2

(2x - 1)³ + 4 = 2 - 25

(2x - 1)³ + 4 = -23

(2x - 1)³       = -23 - 4

(2x - 1)³       = -27

(2x - 1)³       = -3³

2x - 1           = -3

2x                = -3 + 1

2x                = -2

x    = -2 : 2

x    = -1