Suppose $$ f(x)=2 x^{2}+5 x-3 $$. Compute the following: A.) $$ f(-5)+f(5)=\square $$ B.) $$ f(-5)-f(5)=\square $$ Question Help: $$ \square $$ Video Submit Question

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Sure, let's compute each part step by step.

Given the function:
$$ f(x) = 2x^{2} + 5x - 3 $$

### A.) Compute $$ f(-5) + f(5) $$

1. **Calculate $$ f(-5) $$:**
   $$
   f(-5) = 2(-5)^2 + 5(-5) - 3 = 2(25) - 25 - 3 = 50 - 25 - 3 = 22
   $$

2. **Calculate $$ f(5) $$:**
   $$
   f(5) = 2(5)^2 + 5(5) - 3 = 2(25) + 25 - 3 = 50 + 25 - 3 = 72
   $$

3. **Add the two results:**
   $$
   f(-5) + f(5) = 22 + 72 = 94
   $$

**Answer for Part A:** $$ 94 $$

---

### B.) Compute $$ f(-5) - f(5) $$

Using the previously calculated values:

$$
f(-5) - f(5) = 22 - 72 = -50
$$

**Answer for Part B:** $$ -50 $$
A.) $$ f(-5) + f(5) = 94 $$ B.) $$ f(-5) - f(5) = -50 $$

Suppose \( f(x)=2 x^{2}+5 x-3 \). Compute the following: A.) \( f(-5)+f(5)=\square \) B.) \( f(-5)-f(5)=\square \) Question Help: \( \square \) Video Submit Question

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