Final answer:
None of the given options are the equivalent expression with only positive exponents.
Step-by-step explanation:
To choose the equivalent expression with only positive exponents, we need to simplify the given options. Let's analyze the options:
A. 53 x 3-8 x 52 x 32 - This expression contains a negative exponent (3-8) which needs to be converted to a positive exponent. We can rewrite it as (1/3^8). However, the other terms in the expression also have negative exponents, so this option is not equivalent with only positive exponents.
B.105 x 96 / 055 36 0 55 x3 26 - This is not a valid expression since there are division symbols (/) and spaces in between the terms. Therefore, none of the given options are the equivalent expression with only positive exponents.