Question 1026537

64^x=(1/16)
<pre>{{{64^x = 1/16}}} -------> {{{64^x = 16^(- 1)}}}
{{{(4^3)^x = (4^2)^-1}}}
{{{4^(3x) = 4^(- 2)}}}
3x = - 2 ------- Bases are equal and so are their exponents
{{{highlight_green(x = - 2/3)}}}