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Prove that x 2 + 8x + 20 > 4 for all values of x.

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Prove that x2 + 8x + 20 > 4 for all values of x.

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To prove that the inequality x 2 8x 20 4 holds for all values of x we can use va…View the full answer


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Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS

ISBN: 9781292183398

1st Edition

Authors: Greg Attwood

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Question Details
Chapter # 7
Section: Exercise 7D
Problem: 11
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Question Posted: July 14, 2023 23:51:17

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