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Evaluate the expression when X= -2 x^2 + 9x + 3
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1 vote
Evaluate the expression when X= -2 x^2 + 9x + 3

User Daniel Timberlake
by
4.5k points

1 Answer

7 votes

Answer:

-11

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

x² + 9x + 3

x = -2

Step 2: Evaluate

  1. Substitute in x: (-2)² + 9(-2) + 3
  2. Exponents: 4 + 9(-2) + 3
  3. Multiply: 4 - 18 + 3
  4. Subtract: -14 + 3
  5. Add: -11
User Florent Monin
by
4.8k points
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