f(x) = 6x 3 + 17x 2 5x 6 a. Show that f(x) = (3x

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f(x) = 6x³ + 17x² – 5x − 6

a. Show that f(x) = (3x – 2)(ax² + bx + c), where a, b and c are constants to be found.

b. Hence factorise f(x) completely.

c. Write down all the real roots of the equation f(x) = 0.

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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 14, 2023 11:51 PM

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f(x) = 6x 3 + 17x 2 5x 6 a. Show that f(x) = (3x

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a To show that fx can be written as 3x 2ax2 bx c we need to expand the righthand side and compare it ...View the full answer

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

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