Question

4^9n+4=256

Answer 1

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

Answer 2

yes

Answer 3

\[4^{9n}=256-4=16^2-2^2=(16-2)(16+2)=14*18=4*63 \\ 4^{9n-1}=63\]

is that right till there?

Answer 4

no my options are: N=-1/9 ,n=1 ,n=8/9 and n=0?

Answer 5

oh sorry your equation must be
\[4^{9n+4}=256\]

Answer 6

yeah its that one!

Answer 7

then whats the answer??

Answer 8

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

Answer 9

then 9n+4=4 so 9n=0 and n=0

Answer 10

okay thank you so much!!

Answer 11

your welcome