a. Show that 2 x+1 + 6(2 x1 ) = 12 can be written as 2(2 x
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a. Show that 2x+1 + 6(2x−1) = 12 can be written as 2(2x ) + 3(2x ) = 12.
b. Hence solve the equation 2x+1 + 6(2x−1) = 12, giving your answer correct to 3 significant figures.
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a Distribute the 6 2x 1 12x 6 12 Combine like terms 14x ...View the full answer
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Related Book For
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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