Question

2^x+3x2^x=256 3ori2 ^puterea

Answer 1

[tex] 2^{x} (1+3)=256 [/tex]
$2^{x} * 2^{2} =256$
$2^{x} =256:4$
$2^{x} =64$
$2^{x} = 2^{6}$
x=6