Use the substitution u = 2 x to solve the equation 2 2x 5(2 x+1 )

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Use the substitution u = 2^x to solve the equation 2^2x − 5(2^x+1) + 24 = 0.

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Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook

ISBN: 9781108407199

1st Edition

Authors: Sue Pemberton, Julianne Hughes, Julian Gilbey

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Question Posted: Mar 13, 2023 02:56 AM

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Use the substitution u = 2 x to solve the equation 2 2x 5(2 x+1 )

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Let u 2x Then the equation becomes u2 5u 24 0 We can factor the left side of the equat...View the full answer

Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook

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