Question

Solve: 8^x-1 = 2^x+1

Answer 1

Do you have n idea how to start on this problem?

Answer 2

hint: 8 = 2^3

Answer 3

no i have no clue

Answer 4

\[\large 8^{x-1} = 2^{x+1} \implies (2^3)^{x-1} = 2^{x+1}\]

Answer 5

it wants me to solve for x though

Answer 6

Since you have the same base (2) on both sides you can remove it, so you end up with
3(x+1) = x + 1,
Now you can solve for x

Answer 7

3(x-1), not 3(x+1) - it was a typo