Quadratics
Review question

When is $12x^2+7x-10$ negative?
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Ref: R5059
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Question

  1. Find the range of values of \(x\) for which the expression \(12x^2+7x-10\) is negative.

  2. Find the range of values of \(c\) for which the expression \(x^2+4x+c\) is always positive.

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UCLES O level Additional Mathematics 2, QP 420/2, 1962, Q7(ii), 7(iii)

Question reproduced by kind permission of Cambridge Assessment Group Archives. The question remains Copyright University of Cambridge Local Examinations Syndicate (“UCLES”), All rights reserved.

 Last updated 17-Feb-16
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