Simplify
(i) `(-4)^5 xx (-4)^(-10)`
(ii) `2^5 -: 2^(-6)`

Explanation

Let's simplify the given expressions step by step.

### Part (i): Simplify `(-4)^5 × (-4)^(-10)`

1. **Identify the Base and Exponents**: The base is `-4`, and the exponents are `5` and `-10`.

2. **Apply the Exponent Multiplication Rule**: According to the rule \( a^m \times a^n = a^{m+n} \), we can add the exponents since the bases are the same.
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