Question 1188648
<br>
Your notation is unclear in at least two places....<br>
"log 6(x+4)"  --  is that {{{log((6(x+4)))}}} or {{{log(6,(x+4))}}}?<br>
"z -1(x) = 2"  --  is that perhaps an inverse function?  If so, use "z^(-1)(x)".<br>
Re-post, making the problem clear<br>