Question

[Vo Hoang Bao Han]

Tinh 

   8²⁰ + 4²⁰

   4²⁵ + 64⁵

Answer 1

[Hoàng Phúc]

\(\frac{8^{20}+4^{20}}{4^{25}+64^5}=\frac{\left(2^3\right)^{20}+\left(2^2\right)^{20}}{\left(2^2\right)^{25}+\left(2^6\right)^5}=\frac{2^{60}+2^{40}}{2^{50}+2^{30}}\)

\(=\frac{2^{40}.\left(2^{20}+1\right)}{2^{30}.\left(2^{20}+1\right)}=\frac{2^{40}}{2^{30}}=\frac{2^{30}.2^{10}}{2^{30}}=2^{10}=1024\)

Answer 2

[Hồ Lê Hằng Nga]

\(\frac{8^{20}+4^{20}}{4^{25}+64^5}=1024\)