Answer:

General Formulas and Concepts:
Order of Operations: BPEMDAS
Standard Form: ax² + bx + c = 0
Quadratic Formula:

Explanation:
Step 1: Define
-h² - 4h + 5 = 0
a = -1
b = -4
c = 5
Step 2: Solve for x
- Substitute:

- Simplify:

- Exponents:

- Multiply:

- Add:

- Evaluate:

- Evaluate:
