a. Show that 2 x+1 + 6(2 x1 ) = 12 can be written as 2(2 x

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a. Show that 2^x+1 + 6(2^x−1) = 12 can be written as 2(2^x) + 3(2^x) = 12.
b. Hence solve the equation 2^x+1 + 6(2^x−1) = 12, giving your answer correct to 3 significant figures.

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

ISBN: 9781108407199

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Authors: Sue Pemberton, Julianne Hughes, Julian Gilbey

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Question Posted: Mar 14, 2023 07:18 AM

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a. Show that 2 x+1 + 6(2 x1 ) = 12 can be written as 2(2 x

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a Distribute the 6 2x 1 12x 6 12 Combine like terms 14x ...View the full answer

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

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