Question

(5^7:25^2-11^2)^10:8^6

Answer 1

(5^7:25^2-11^2)^10:8^6=4
(78125:625-121)^10:8^6=4
(125-121)^10:8^6=4
4^10:8^6=4
1048576:262144=4

Answer 2

( 5⁷ : 25² - 11² )¹⁰ : 8⁶ = 4

= [ 5⁷ : ( 5²)² - 121 )¹⁰ : ( 2³ )⁶ =

= ( 5 ⁽ ⁷ ⁻ ⁴ ⁾ - 121 ) ¹⁰ : 2 ³ ˣ ⁶ =

= ( 5³ - 121 )¹⁰ : 2¹⁸ =

= ( 125 - 121 )¹⁰ : 2¹⁸ =

= 4¹⁰ : 2¹⁸ =

= ( 2²)¹⁰ : 2¹⁸ =

= 2 ⁽ ²⁰ ⁻ ¹⁸ ⁾ =

= 2² =

= 4