Question

(x-1)^3=64

2x-1/27=3/2x-1

3/4+1/4x=-1/2

(x-1)^3=1/8

Answer 1

(x-1)^3=64

=> (x-1)^3=8^3

=> x-1=8

=> x=9

 Vậy x=9

2x-1/27=3/2x-1

=> 2x-3/2x=-1+1/27

=> 1/2x=-26/27

=> x=-52/27

Answer 2

3/4+1/4x=-1/2

=> 1/4x=-1/2-3/4

=> 1/4x=-5/4

=> x=-5

 Vậy x=-5

(x-1)^3=1/8

=> (x-1)^3=(1/2)^3

=> x-1=1/2

=> x=3/2

 Vậy x=3/2