Question

4^9n+4=256

Answer 1

\[4^{9n}+4=256 ~?\]

Answer 2

should be
\[4^{9n+4}=256\]

Answer 3

4^{9n+4}=256
\[4^{9n+4}=4^4\]
same base
9n+4=4
solve

Answer 4

4^{9n+4}=256
4^9n+4=4^4
since the base is same the power will equal
9n+4=4
9n=4-4
n=0/9
n=0
so there is no solution.
Hope it helps :)