Question

X^4 − 3x^2 − 90 x= -3

Answer 1

-36

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Explanation:

Step 1: Define

x⁴ - 3x² - 90

x = -3

Step 2: Evaluate

1. Substitute in x: (-3)⁴ - 3(-3)² - 90
2. Exponents: 81 - 3(9) - 90
3. Multiply: 81 - 27 - 90
4. Subtract: 54 - 90
5. Subtract: -36