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Distributive Property - video-solutions

# Distributive Property - video-solutions - correct 5-15 x 4...

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nanni (arn437) – Distributive Property - video – CNS – (87654) 1 This print-out should have 4 questions. Multiple-choice questions may continue on the next column or page – fnd all choices beFore answering. 001 10.0 points SimpliFy - 5 x 2 ( 4 x 3 + 2 x 2 - 9 x + 2 ) 1. - 20 x 5 - 10 x 4 + 45 x 3 - 10 x 2 correct 2. None oF these 3. - 20 x 3 - 10 x 2 + 45 x - 10 4. 20 x 5 - 10 x 4 + 45 x 3 - 10 x 2 5. - 20 x 5 - 10 x 4 + 45 x 3 + 10 x 2 Explanation: - 5 x 2 ( 4 x 3 + 2 x 2 - 9 x + 2 ) = - 20 x 5 - 10 x 4 + 45 x 3 - 10 x 2 002 10.0 points SimpliFy p 1 4 x + 7 P (8 x + 9) 1. 2 x 2 + 233 4 x + 7 2. 2 x 2 + 233 4 x - 63 3. 2 x 2 + 233 4 x + 63 correct 4. 2 x 3 + 233 4 x 2 + 63 x 5. 2 x 2 - 233 4 x + 63 Explanation: p 1 4 x + 7 P (8 x + 9) = 1 4 x (8 x + 9) + 7(8 x + 9) = 2 x 2 + 9 4 x + 56 x + 63 = 2 x 2 + 233 4 x + 63 003 10.0 points SimpliFy 5 x 2 ( x 3 - 3 x 2 + 3 x - 6 ) 1. 5 x 5 - 3 x 4 + 15 x 3 - 5 x 2 2. 5 x 5 - 15 x 4 + 15 x 3 3. 5 x 3 - 15 x 2 + 15 x - 30 4. 5 x 5 - 15 x 4 + 15 x 3 - 30 x 2
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Unformatted text preview: correct 5.-15 x 4 + 15 x 3-30 x 2 Explanation: 5 x 2 ( x 3-3 x 2 + 3 x-6 ) = 5 x 5-15 x 4 + 15 x 3-30 x 2 004 10.0 points SimpliFy ( 1 x 2-4 x + 3 ) (8 x + 1) 1. 8 x 4-31 x 3 + 20 x 2 + 3 x 2. 8 x 3-31 x 2 + 20 x 3. 8 x 3-31 x 2-20 x + 3 4. 8 x 3-31 x 2 + 20 x + 3 correct 5. 8 x 3-31 x 2 + 20 x-3 Explanation: ( 1 x 2-4 x + 3 ) (8 x + 1) = 1 x 2 (8 x + 1)-4 x (8 x + 1) + 3 (8 x + 1) = 8 x 3 + 1 x 2-32 x 2-4 x + 24 x + 3 = 8 x 3-31 x 2 + 20 x + 3...
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