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stealth61 [152]
3 years ago
14

Consider the function f(x) = 8x2 + 5x – 2.

Mathematics
1 answer:
Rudiy273 years ago
3 0

Answer:

f(-2) = 20

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

Step-by-step explanation:

<u>Step 1: Define</u>

f(x) = 8x² + 5x - 2

x = -2

<u>Step 2: Evaluate</u>

  1. Substitute in <em>x</em>:                    f(-2) = 8(-2)² + 5(-2) - 2
  2. Exponents:                          f(-2) = 8(4) + 5(-2) - 2
  3. Multiply:                               f(-2) = 32 - 10 - 2
  4. Subtract:                              f(-2) = 22 - 2
  5. Subtract:                              f(-2) = 20
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Step-by-step explanation:

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