Question

Neste sentido, a metade do número 2²¹ + 4¹² é dada por?

Answer 1

$2^{21}+4^{12} = 2^{21} + (2^2)^{12} = 2^{21}+2^{24}= 2^{21}.(1+2^{3})$

$\frac{2^{21}.(1+2^{3})}{2^1} = {2^{20}.(1+2^{3})$