which of your symbols are the variable x, and
which are the multiplication operator × ?
As an added aid to clarity, why not use some spaces to separate the factors, use * for multiplication, or enclose each in parentheses? For example
3x^7 2x^-2
3x^7*2x^-2
(3x^7)(2x^-2)
1 simplify 5×^6x5^-3×^4?
2 answers
the x is after 5 and 3 while the multiplication sign is in between 6 and 5.