Question

Solve for x: 9^(3x)=81^(x-4)

Answer 1

would you know how to solve \(5^{2x}=5^{x+1}\)?

Answer 2

same link from earlier, joyce. exponents are covered in that chapter :)

Answer 3

change that 81 as some power of 9 so your equation will be:
\[\large 9^{3x}={(9^2)}^{(x-4)} \]