Factorize: `a^2+4b^2-4a b-4c^2`

Explanation

To factorize the expression \( a^2 + 4b^2 - 4ab - 4c^2 \), we can follow these steps:

### Step 1: Rearrange the Expression
We start with the expression:
\[ a^2 + 4b^2 - 4ab - 4c^2 \]
We can rearrange it to group similar terms:
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