Question

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

Answer 1

Answer:

-x² - 5x + 1

General Formulas and Concepts:

Pre-Algebra

• Distributive Property

Algebra I

• Combining Like Terms

Step-by-step explanation:

Step 1: Define

A = 3x² - 3x + 5

B = x² - 4x + 3

Step 2: Find 2B - A

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