Question

\(2^x+2^{x+4}=544\)

Answer 1

     2^x + 2^{x + 4}  = 544

\(\Rightarrow\)  2^x + 2^x . 2⁴ = 544

\(\Rightarrow\)2^x . ( 1 + 2⁴ ) = 544

\(\Rightarrow\)2^x = 544 ÷ 17

\(\Rightarrow\)2^x = 32 = 2⁵

\(\Rightarrow\)x = 5

Vậy : x = 5

Answer 2

2^x+2^x+4=544

2^x+2^x.2⁴=544

2^x.(1+16)=544

2^x.17        =544

2^x              =544:17

2^x               =32=2⁵

^=>x=5

Vậy x=5

hok tốt