Solve, giving your answers correct to 3 sf. a. 2 2x + 2 x+1 15 =
Question:
Solve, giving your answers correct to 3 sf.
a. 22x + 2x+1 – 15 = 0
b. 62x – 6x+1 + 7 = 0
c. 32x – 2(3x+1) + 8 = 0
d. 42x+1 = 17 (4x) - 15
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a 22x 2x1 15 0 Combining like terms we get 24x 2x1 15 2x2 24x 1 15 2x2 24x 14 0 factoring ...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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