f(x) 5 7x 2x 2 for x R a Write f(x) in the form p 2(x q) 2 , where p and q are constants to be found b Write down the range of the function f(x) ...

a The question requires us to rewrite fx 5 7x 2x 2 in the form p 2x q 2 One way to do this is to first expand p 2x q 2 and then equate the coefficients of different powers of x in this expanded form w ...

f(x) = 5 - 7x - 2x 2 for x R a. Write f(x) in the

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f(x) = 5 - 7x - 2x² for x ∈ R

a. Write f(x) in the form p - 2(x - q)², where p and q are constants to be found.

b. Write down the range of the function f(x).

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Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

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f(x) = 5 - 7x - 2x 2 for x R a. Write f(x) in the

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a The question requires us to rewrite fx 5 7x 2x 2 in the form p 2x q 2 One way to do this is to first expand p 2x q 2 and then equate the coefficients of different powers of x in this expanded form w...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

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