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Wittaler [7]
3 years ago
10

3) A = 3 X² -3x+5, B=x2-4x+3. Find 2B-A.

Mathematics
1 answer:
klio [65]3 years ago
4 0

Answer:

-x² - 5x + 1

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define</u>

A = 3x² - 3x + 5

B = x² - 4x + 3

<u>Step 2: Find 2B - A</u>

  1. Substitute:                                2(x² - 4x + 3) - (3x² - 3x + 5)
  2. Distribute:                                 2x² - 8x + 6 - 3x² + 3x - 5
  3. Combine like terms (x²):          -x² - 8x + 3x + 6 - 5
  4. Combine like terms (x):           -x² - 5x + 6 - 5
  5. Combine like terms (Z):           -x² - 5x + 1
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