Question

what is the value of the expression (2^4)^2

Answer 1

$\bf (2^4)^2\implies 2^{4\cdot 2}\implies 2^8\implies 2\cdot 2\cdot2\cdot2\cdot2\cdot2\cdot2\cdot2\implies 256$

Answer 2

(2^4)^2 = 16^2 = 256