Question

2^x+2^x+4=136

Answer 1

2^x + 2^{x + 4} = 136

2^x . 1 + 2^x . 2⁴ = 136

2^x( 1 + 16 ) = 136

2^x . 17 = 136

2^x = 136 : 17 = 8 = 2³

Vậy x = 3

Answer 2

ĐỀ BÀI:

2^X+2^X+4=136

GỈAI

2^x+2^x.2⁴=136

2^x.1+2^x.2⁴=136

2^x.(1+2⁴)=136

2^x.(1+16)=136

2^x.17=136

2^x=136:17

2^x=8

=>x=3

Đáp án:3

Answer 3

2x + 2x + 4 = 136

2x . 1 + 2x . 24 = 136

2x( 1 + 16 ) = 136

2x . 17 = 136

2x = 136 : 17 = 8 = 23

Vậy x = 3