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21.12.2020 •
Mathematics
3) A = 3 X² -3x+5, B=x2-4x+3. Find 2B-A.
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Ответ:
-x² - 5x + 1
General Formulas and Concepts:
Pre-Algebra
Distributive PropertyAlgebra I
Combining Like TermsStep-by-step explanation:
Step 1: Define
A = 3x² - 3x + 5
B = x² - 4x + 3
Step 2: Find 2B - A
Substitute: 2(x² - 4x + 3) - (3x² - 3x + 5)Distribute: 2x² - 8x + 6 - 3x² + 3x - 5Combine like terms (x²): -x² - 8x + 3x + 6 - 5Combine like terms (x): -x² - 5x + 6 - 5Combine like terms (Z): -x² - 5x + 1Ответ: