Question

60. Tính giá trị 

 A = 2⁷ : 2⁵ + 10

B = 3² . 3² - 3² . 4³

C = 5 ²⁰²⁰ . 5²⁰²⁰ +3⁰ + 1

Answer 1

a: \(A=2^2+10=14\)

b: \(B=3^4-9\cdot64=81-512=-431\)

 

Answer 2

`A=2^7 : 2^5 + 10`

`A = 2^(7-5) + 10`

`A=2^2 + 10`

`A=4+10`

`A=14`

____________________________

`B=3^2 . 3^2 - 3^2 . 4^3`

\(B=3^{2+2}-9.64\)

\(B=3^4-512\)

\(B=81-512\)

`B=-431`

________________________________

\(C=5^{2020}.5^{2020}+3^0+1\)

\(C=5^{2020+2020}+3^0+1\)

`C=5^4040 + 3^0 + 1`

`C=5^4040 + 1+1`

`C=5^4040 + 2`