2 mũ x + 2 mũ x + 4 = 272

2 câu trả lời

2^x + 2^x+4= 272

2^x (1+2^4)=272

2^x . 17=272

2^x=272:17=16=2^4

vẬY X=4

$2^{x}+2^{x}+4=272$

$2^{x}.(1+2^{4})=272$

$2^{x}.17=272$

$2^{x}=272:17$

$2^{x}=16$

$16 = 2^{4}$

$→ x = 4$