Question

a)   84 : 4 + 3⁹ : 3⁷ + 5⁰

Answer 1

`@` `\text {Ans}`

`\downarrow`

`a)`

`84 \div 4 + 3^9 \div 3^7 + 5^0`

`= 21 + 3^2 + 1`

`= 21 + 9 + 1`

`= 30 + 1`

`= 31`

Answer 2

\(84:4+3^9:3^7+5^0=21+3^2+1=22+9=31\)

Answer 3

84 : 4 + 3⁹ : 3⁷ + 5⁰

= 84 : 4 + 3² + 1

= 84 : 4 + 9 + 1

= 21 + 9 + 1

= 30 + 1

= 31