Question

Aflati numarul natural x din egalitatea:2 la puterea x + 3 ori 2 la puterea x = 256

Answer 1

2^x+3×2^x=256<=>4×2^x=256<=>2^x=64<=> 2^x=2^6=>x=6. " ^ " -este ridicare la putere.

Answer 2

$2^{x}+3 *2^{x}=256 \\ 2^{x}(1+3)}=2^{8} \\ 2^{x}= \frac{256}{4} \\ 2^{x}=64=2^{6}=\ \textgreater \ x=6$