Answer:

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

Algebra II
- Imaginary Roots: √-1 = i
- Standard Form: a + bi
Explanation:
Step 1: Define
-4x² - 4x - 9 = 0
a = -4
b = -4
c = -9
Step 2: Find roots
- Substitute:

- Exponents:

- Multiply:

- Subtract:

- Factor:

- Simplify:

- Factor:

- Divide:

- Expand:

- Simplify:

- Evaluate:
