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Simplify using the vertical method. (2k + 3)(2k2 – 4k – 3)

User Moish
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2 Answers

7 votes

Answer:

4k3 – 2k2 – 18k – 9

Explanation:

User Vitor Ramos
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(2k + 3)(2k² - 4k - 3)
2k(2k² - 4k - 3) + 3(2k² - 4k - 3)
2k(2k²) - 2k(4k) - 2k(3) + 3(2k²) - 3(4k) - 3(3)
4k³ - 8k² - 6k + 6k² - 12k - 9
4k³ - 8k² + 6k² - 6k - 12k - 9
4k³ - 2k² - 18k - 9
User Perchik
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