Question

[Đoàn Minh Ánh]

1. ( 5^2001 - 5^2000) : 5^2000
2. (7^2005 + 7^2004) : 7^2004
3. (5^7 + 7^5). (6^8 + 8^6). (2^4 - 4^2)
4. (7^8 + 7^9) + (5^4 + 5^6) + (3^3. 3 - 9^2)
5. ((5^2. 2^3) - 7^2. 2): 2). 6 - 7. 2^5

Answer 1

[Nguyễn Anh Tuấn]

1. \(\left(5^{2001}-5^{2000}\right)\div5^{2000}=5^{2001}\div5^{2000}+5^{2000}\div5^{2000}=5+1=6\)

Answer 2

[Nguyễn Anh Tuấn]

2. \(\left(7^{2005}+7^{2004}\right)\div7^{2004}=7^{2005}\div7^{2004}+7^{2004}\div7^{2004}=7+1=8\)