If `f(x)=x^(2) + 5x-3` , then evaluate `f(4)`

Explanation

To evaluate the function \( f(x) = x^2 + 5x - 3 \) at \( x = 4 \), we follow these steps:

### Step 1: Substitute \( x \) with \( 4 \)
We start by substituting \( x \) in the function with \( 4 \):
\[ f(4) = 4^2 + 5 \cdot 4 - 3 \]

### Step 2: Calculate \( 4^2 \)
Next, we calculate \( 4^2 \):
\[ 4^2 = 16 \]

### Step 3: Calculate \( 5 \cdot 4 \)
Now, we calculate \( 5 \cdot 4 \):
\[ 5 \cdot 4 = 20 \]

### Step 4: Combine the results
Now, we combine all the results into the equation:
\[ f(4) = 16 + 20 - 3 \]

### Step 5: Perform the addition and subtraction
Now, we perform the addition and subtraction:
\[ 16 + 20 = 36 \]
\[ 36 - 3 = 33 \]

### Final Answer
Thus, the value of \( f(4) \) is:
\[ f(4) = 33 \]

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