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1 GCSE Mathematics Intermediate Tier Paper 2 (f)

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2 A solution to the equation x 3 – 7x – 75 = 0 lies between 4 and 5. Use trial & improvement to find this solution correct to 1 decimal place. A solution to the equation x 3 + 2x – 5 = 0 lies between 1 and 2. Use trial & improvement to find this solution correct to 1 decimal place. A solution to the equation x 3 - 12x – 25 = 0 lies between 4.2 and 4.3 Use trial & improvement to find this solution correct to 2 decimal place.

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© T Madas Trial and Improvement. © T Madas Find the solution of x 2 + 2x = 39 to 1 decimal place, given that x lies between 5 and 6. too high39.322510.728.62255.35.

© T Madas Trial and Improvement. © T Madas Find the solution of x 2 + 2x = 39 to 1 decimal place, given that x lies between 5 and 6. too high39.322510.728.62255.35.

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