( x mũ 5 ) mũ 10 = x

`(x^5)^10 = x`

`⇔ x^(5. 10) = x`

`⇔ x^50 = x`

`⇔ x^50 + (-x) = x + (-x)`

`⇔ x^50 - x = 0`

`⇔ x((x^50)/(x) - x/x) = 0`

`⇔ x(x^(50 - 1) - 1) = 0`

`⇔ x(x^49 - 1) = 0`

`⇔ {(x=0),(x^49-1=0):}`

`⇔ {(x=0),((x^49-1)+1=1):}`

`⇔ {(x=0),(x^49-1+1=1):}`

`⇔ {(x=0),(x^49=1):}`

`⇔ {(x=0),((x^49)^(1/49)=1):}`

`⇔ {(x=0),(x^(49. 1/49)=1):}`

`⇔ {(x=0),(x^(49/49)=1):}`

`⇒ {(x=0),(x=1):}`

`x ∈ {0, 1}`

Cho mình xin hay nhất nha bạn!!!!

@Drew Mclntyre