Question

Factor out the GCF

4-4 ^n +1

should be 4 (1-4^n)

but I'm thinking the answer is 4 (1-1^n)

someone explain ?

Answer 1

is it
\[4-4^{n}+1\]??

Answer 2

\[4-4^{n+1}=4-4*4^{n}=4(1-4^{n)}\]

Answer 3

thank you man!

Answer 4

It's a property used here which states that whenever base is same powers are added.
So,
\[4^{1}*4^{n}=4^{n+1}\]

Answer 5

i think you already know it..
you're welcome..!

Answer 6

yeah just a confusion thanks again :)

Answer 7

nvm... just remember in future...:)

Answer 8

I will :)