Respuesta :

Space

Answer:

x = ±25

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

Algebra I

  • Multiple Roots

Step-by-step explanation:

Step 1: Define

x² = 625

Step 2: Solve for x

  1. Square root both sides:                    x = ±25

Step 3: Check

Plug in x into the original equation to verify it's a solution.

x = -25

  1. Substitute in x:                    (-25)² = 625
  2. Exponents:                          625 = 625

Here we see that 625 does indeed equal 625.

∴ x = -25 is a solution to the equation.

x = 25

  1. Substitute in x:                    25² = 625
  2. Exponents:                          625 = 625

Here we see that 625 does indeed equal 625.

∴ x = 25 is a solution to the equation.

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