Question

Resolva, em R, a equação
16^x - 32 = 0

Answer 1

     x
16     -  32   =  0

     x
16     =    32

   4x          5 
2      =    2

4x = 5
x = 5/4

Answer 2

$16^x-32=0\\\\ 16^x=32\to \\\\ 2^{4x}=2^5\to \\\\ 4x=5\to \\\\ x= \frac{5}{4}$