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svetlana [45]
3 years ago
14

Explain this to me please.

Mathematics
1 answer:
Margarita [4]3 years ago
7 0

Answer:

f(x + 3) = x² + 3x - 2

General Formulas and Concepts:

  • Order of Operations: BPEMDAS
  • Expand by FOIL (First Outside Inside Last)

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = x² - 3x - 2

f(x + 3) is x = x + 3

<u>Step 2: Find</u>

  1. Substitute:                              f(x + 3) = (x + 3)² - 3(x + 3) - 2
  2. Expand by FOILing:               f(x + 3) = x² + 6x + 9 - 3(x + 3) - 2
  3. Distribute 3:                            f(x + 3) = x² + 6x + 9 - 3x - 9 - 2
  4. Combine like terms:               f(x + 3) = x² + 3x - 2
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