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Simplify and express the result in power...

Simplify and express the result in power notation with positive exponent. (i) `(-4)^5 -: (-4)^8` (ii) `(1/(2^3))^2` (iii) `(-3)^4 xx (5/3)^4` (iv) `(3^(-7) -: 3^(-10)) xx 3^(-5)` (v) `2^(-3) xx (-7)^(-3)`

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Let's simplify each part step by step and express the result in power notation with positive exponents. ### (i) Simplify `(-4)^5 -: (-4)^8` 1. **Apply the Quotient Rule**: \[ \frac{a^m}{a^n} = a^{m-n} \] ...
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