Resposta:
[tex]\textsf{Segue a resposta abaixo}[/tex]
Explicação passo-a-passo:
[tex] \mathsf{ 4^{10}+2^{20}=1048576+1048576}[/tex]
[tex] \mathsf{4^{10}+2^{20}= 2097152}[/tex]
[tex]\begin{array}{r|l}\sf 2097152&\sf2\\\sf1048576&\sf2\\\sf 524288&\sf2\\\vdots&\vdots\\\sf 2&\sf2\\\sf1&\!\!\!\overline{~\:\sf2097152=2^{21}~}\end{array}[/tex]
[tex] \boxed{\boxed{\mathsf{4^{10}+2^{20}= 2^{21}}}}\leftarrow\textsf{letra D}[/tex]
