If `lim_(x->a)(x^3-a^3)/(x-a)=lim_(x->1)(x^4-1)/(x-1)` , find all possible value o `adot`

Explanation

To solve the limit equation given in the question, we will follow these steps:

### Step 1: Set up the limits
We start with the equation:
\[ \lim_{x \to a} \frac{x^3 - a^3}{x - a} = \lim_{x \to 1} \frac{x^4 - 1}{x - 1} \]

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