a. Use algebra to solve (x 1)(x + 2) = 18. b. Hence, or otherwise, find

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a. Use algebra to solve (x − 1)(x + 2) = 18.

b. Hence, or otherwise, find the set of values of x for which (x − 1)(x + 2) > 18. Give your answer in set notation.

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

ISBN: 9781292183398

1st Edition

Authors: Greg Attwood

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Question Posted: Jul 11, 2023 03:43 AM

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a. Use algebra to solve (x 1)(x + 2) = 18. b. Hence, or otherwise, find

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Step by Step Answer:

a To solve the equation x 1x 2 18 we can start by expanding the expression x 1x 2 18 x2 x 2 18 Now w...View the full answer

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

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