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Firdavs [7]
3 years ago
15

Given P (x)=x^2+2x-7, find P (-3)

Mathematics
1 answer:
leva [86]3 years ago
8 0

Answer:

P(-3) = -4

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

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

P(x) = x² + 2x - 7

P(-3) is x = -3

<u>Step 2: Evaluate</u>

  1. Substitute:                    P(-3) = (-3)² + 2(-3) - 7
  2. Exponents:                   P(-3) = 9 + 2(-3) - 7
  3. Multiply:                        P(-3) = 9 - 6 - 7
  4. Subtract:                       P(-3) = 3 - 7
  5. Subtract:                       P(-3) = -4
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