Show that the roots of the equation kx 2 + 5x - 2k = 0 are real
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Show that the roots of the equation kx2 + 5x - 2k = 0 are real and distinct for all real values of k.
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Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
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