Solve, giving your answers correct to 3 significant figures. a. 5 2x 5(5 x ) +

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Solve, giving your answers correct to 3 significant figures.
a. 5^2x − 5(5^x) + 6 = 0

b. 2^2x + 5 = 6 × 2^x

c. 3^2x = 6 × 3^x + 7

d. 4^2x + 27 = 12(4^x)

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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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Solve, giving your answers correct to 3 significant figures. a. 5 2x 5(5 x ) +

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a To solve 52x 55x 6 0 let y 5x Then the equation becomes a quadratic equation in y y2 5y 6 0 Factor...View the full answer

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

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