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Solve pls

for the function -2x²+x+1 find f(3)

Sagot :

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Answer:

f(3) = -14

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

Algebra I

  • Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -2x² + x + 1

f(3) is x = 3

Step 2: Evaluate

  1. Substitute:                    f(3) = -2(3)² + 3 + 1
  2. Exponents:                   f(3) = -2(9) + 3 + 1
  3. Multiply:                        f(3) = -18 + 3 + 1
  4. Add:                              f(3) = -15 + 1
  5. Add:                              f(3) = -14
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