Question

2^x+2-3*2^x=16

 

Answer 1

2 ^{x + 2} - 3 * 2 ^x = 16

2 ^x ( 2 ² - 3 )  = 16

2 ^x . 1           = 16

2 ^x                = 16

2 ^x                = 2 ⁴

=> x = 4

Answer 2

cam on ban

Answer 3

suy ra : 2^x . 2^2 - 3*2^x =16

2^x (2^2-3)=16

2^x=16

2^x=2^4

x=4