2. Write down the coefficient of $$ x $$ : $$ 3 x^{2}+7 x-1 $$ a) e) $$ 6 x-2+4 y^{2}+4 x^{2} $$ e)

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To determine the coefficient of $$ x $$ in the given expressions, let's analyze each one separately.

### 1. For the expression $$ 3x^{2} + 7x - 1 $$:

- **Term containing $$ x $$**: $$ 7x $$
- **Coefficient of $$ x $$**: **7**

### 2. For the expression $$ 6x - 2 + 4y^{2} + 4x^{2} $$:

- **Term containing $$ x $$**: $$ 6x $$ and $$ 4x^{2} $$
  - **Note**: $$ 4x^{2} $$ is a term with $$ x^{2} $$, so it doesn't contribute to the coefficient of $$ x $$.
- **Coefficient of $$ x $$**: **6**

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**Summary:**

1. **First Expression ($$ 3x^{2} + 7x - 1 $$)**:  
   - **Coefficient of $$ x $$**: **7**

2. **Second Expression ($$ 6x - 2 + 4y^{2} + 4x^{2} $$)**:  
   - **Coefficient of $$ x $$**: **6**
The coefficient of $$ x $$ in the first expression is **7**, and in the second expression, it is **6**.

2. Write down the coefficient of \( x \) : \( 3 x^{2}+7 x-1 \) a) e) \( 6 x-2+4 y^{2}+4 x^{2} \) e)

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