Question

(5x-2^4)*3^8=2*3^11
(chỉ ra cách làm luôn ạ)

Answer 1

`(5x-2^4) . 3^8 = 2 . 3^11`

`=> 5x-16 = 2 . 3^(11-8)`

`=> 5x-16=2 . 3^3`

`=> 5x-16 = 2 . 27`

`=> 5x-16=54`

`=> 5x=54+16`

`=> 5x=70`

`=> x=70:5`

`=> x=14`

Vậy `x=14`

Answer 2

(5x-2⁴)*3⁸=2*3^11-8

(5x-2⁴)*3⁸=2*3³

(5x-2⁴)=2*27

(5x-2⁴)=54

=>5x-16=54

=>5x     =54+16

=>5x     =70

=>x=70:5

=>x=14

Vậy x = 14