Question

Raise 2 to the 8th power then add the result to k

Answer 1

i believe the answer you are looking for is
`2x^(8) +k`

Answer 2

Raise 2 to the 8th power then add the result to k
2*2*2*2*2*2*2*2

Aka 2^8 wich is 256

So your answer will be 256k