Question

( 2x - 1 )^3 = 125

Answer 1

(2x-1)^3=5^3

2x-1=5

2x   =5+1

2x   =6

x     =6 (k cho minh nha)

Answer 2

125=5^3

(2x-1)^3=5^3

(2x-1)=5

2X=5+1=6

X=6:2=3

Vậy X=3

Answer 3

(2x-1)^3=125

(2x-1)^3=5^3

=>2x-1=5

2x=5+1

2x=6

x=6/2

x=3