Respuesta :

Space

Answer:

D. -7/3, 7/3

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  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

Algebra I

  • Multiple Roots

Step-by-step explanation:

Step 1: Define

9x² - 49 = 0

Step 2: Solve for x

  1. [Addition Property of Equality] Isolate x term:                                              9x² = 49
  2. [Division Property of Equality] Isolate x term:                                              x² = 49/9
  3. [Equality Property] Isolate x:                                                                          x = ±7/3

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