Question 637251
{{{2^5/2 -2^3/2=2*2*2*2*2/2 -2*2*2/2=32/2-8/2=16-4=12}}}

as you can see, the {{{2^3/2}}} is not a solution , and it could not be because you are subtracting that from {{{2^5/2}}}