Đáp án + Giải thích các bước giải:
`1)`
`a)` `4.4.4.4.4`
`= 4^5`
`b)` `2.4.8.8.8.8`
`= 2 . 2^2 . 2^3 . 2^3 . 2^3 . 2^3`
`= 2^15`
`c)` `10 . 10 . 10 . 100`
`= 10 . 10 . 10 . 10^2`
`= 10^5`
`2) `
`a)` `a^4 . a^6`
`= a^(4+6)`
`= a^10`
`b)` `(a^5)^7`
`= a^(5.7)`
`= a^35`
`c)` `(a^3)^4 . a^9`
`= a^12 . a^9`
`= a^21`
`d)` `(2^3)^5 . (2^3)^4`
`C1:` `= 2^15 . 2^12`
`= 2^27`
`C2:` `= 8^5 . 8^4`
`= 8^9`
`3) `
`a)` `4^8 . 2^20`
`= (2^2)^8 . 2^20`
`= 2^16 . 2^20`
`= 2^36`
`9^12 . 27^5 . 81^4`
`= (3^2)^12 . (3^3)^5 . (3^4)^4`
`= 3^24 . 3^15 . 3^16`
`= 3^39 . 3^16`
`= 3^55`
`64^3 . 4^5 . 16^2`
`= (4^3)^3 . 4^5 . (4^2)^2`
`= 4^9 . 4^5 . 4^4`
`= 4^18`
`b)` `25^20 . 125^4`
`= (5^2)^20 . (5^3)^4`
`= 5^40 . 5^12`
`= 5^52`
`x^7 . x^4 . x^3`
`= x^11 . x^3`
`= x^14`
`3^6 . 4^6`
`= 12^6`
`c)` `8^4 . 2^3 . 16^2`
`= (2^3)^4 . 2^3 . (2^4)^2`
`= 2^12 . 2^3 . 2^8`
`= 2^23`
`2^3 . 2^2 . 8^3`
`= 2^3 . 2^2 . (2^3)^3`
`= 2^3 . 2^2 . 2^9`
`= 2^14`
`y . y^7`
`= y^8`
CHÚC BẠN HỌC TỐT!
