Use the substitution u = 5 x to solve the equation 5 2x 2(5 x+1 )
Question:
Use the substitution u = 5x to solve the equation 52x – 2(5x+1) + 21 = 0.
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The equation can be rewritten as 52x 25x1 21 0 We c...View the full answer
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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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