Question

(2x-1)³=27

 

Answer 1

(2x-1)³=27

(2x-1)³=3³

=>2x-1=3

2x=3+1

2x=4

x=4:2

x=2

Answer 2

=>(2x-1)³=3³

=>(2x-1)=3

2x=3+1

2x=4

x=4:2

x=2

Answer 3

(2x-1)³=-27

(2x-1)³=3³

=> 2x-1=3

     2x=3+1

     2x=4

       x=4:2

       x=2

Answer 4

suy ra {2x-1}³=3³            suy ra 2x-1=3        suy ra 2x=3+1         suy ra 2x=4      suy ra x=4:2       suy ra x=2 ​