F(x) = x 3 + ax 2 + bx + c The roots of f(x) = 0

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F(x) = x³ + ax² + bx + c

The roots of f(x) = 0 are 1, k, and k + 1.

When f(x) is divided by x – 2, the remainder is 20.

a. Show that k² – 3k – 18 = 0.

b. Hence find the possible values of k.

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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Question Posted: Aug 23, 2021 01:34 AM

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F(x) = x 3 + ax 2 + bx + c The roots of f(x) = 0

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Answer a Since the roots of fx are 1 k and k 1 we can write x 1x ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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