Question

112+(3.x-1)^5=12^2

Answer 1

112+(3x+1)⁵=12²

112+(3x+1)⁵= 144

(3x+1)⁵=144-112

(3x-1)⁵=32

suy ra ( 3x-1)⁵=2⁵

3x-1=2

3x=2+1

3x=3

suy ra x=1

vậy x=1