Respuesta :

Space

Answer:

D. x = -1 and x = 1

General Formulas and Concepts:

Algebra I

  • Standard Form: ax² + bx + c = 0
  • Factoring
  • Solving Roots

Step-by-step explanation:

Step 1: Define

16x² + 9 = 25

Step 2: Solve for x

  1. Subtract 25 on both sides:                    16x² - 16 = 0
  2. Factor GCF:                                             16(x² - 1) = 0
  3. Factor binomial:                                      16(x - 1)(x + 1) = 0
  4. Find roots:                                               x = -1, 1

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