Question

pode resolver essa questão.

Answer 1

$\frac{2^{21} + 4^{12}}{2} = \\ \\ (2^{21}+4^{12})*\frac{1}{2} = \\ \\ (2^{21} + 4^{12}) * 2^{-1} = \\ \\ (2^{21}+2^{24})*2^{-1} = \\ \\ (2^{21}*2^{-1}) + (2^{24}*2^{-1}) = \\ \\ 2^{21-1}+2^{24-1} = \\ \\ 2^{20} + 2^{23}$