Question

Explain the answer with full steps plz the best will be marked as brainliest​

Answer 1

( √5 + 1 )^5 - ( √5 - 1 )^5

= [ ( √5 + 1 )^2 ]^3 - [ ( √5 - 1 )^2 ]^3

= [ 5 + 1 ]^3 - [ 5 - 1 ]^3

= [ 125 + 1 ] - [ 125 - 1 ]

= 125 + 1 - 125 + 1

= 2