If $$a - \frac{1}{{a - 3}} = 5{\text{,}}$$ then the value of $${\left( {a

Question

If $$a - \frac{1}{{a - 3}} = 5{\text{,}}$$ then the value of $${\left( {a - 3} \right)^3}$$ - $$\frac{1}{{{{\left( {a - 3} \right)}^3}}} = ?$$

Options:

A . 7

B . 14

C . 2

D . 5

Answer: Option B

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