Final answer:
To simplify the expression x^-7y^5, you can apply the rule for negative exponents which states that x^-n = 1/x^n. Therefore, the simplified expression is 1/x^7y^5.
Step-by-step explanation:
The expression x-7y5 can be simplified by applying the rule for negative exponents, which states that a negative exponent flips the base to the denominator. In this case, we can rewrite x-7y5 as 1/x7y5.