Solution equation: 3x2 + 2 (2-1) x - (3-22) = 0

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• 1. 3x-1 / (x ^ 2 + 1) - 3 (x ^ 2 + 1) / 3x-1 = 2, how much is x
• 2. Solution equation: 80 + 10% X-15% x = 79
• 3. Solving equation: 80 + 10% X-15% x = 79 important process
• 4. X * 6 / 5 = 2 / 15
• 5. X-15 2 / 3 = 2 / 3 solution equation
• 6. 13 (x + 5) = 169 how to solve the equation
• 7. 8 × 4-6x = 5. 8, and 13 × (x + 5) = 169
• 8. According to the steps given in the program block diagram in figure 1.3-3, find the value of F (x) = 0.83x ^ 5 + 0.41x ^ 4 + 0.16x ^ 3 + 0.33x ^ 2 + 0.5x + 1 when = 5
• 9. Xiao Ming plans to put 1,2 When he thinks that the input is finished, the computer displays that only (n-1) numbers have been input, flat The average is 30.75, assuming that the (n-1) numbers are correctly input, the number of missing input is
• 10. Kobayashi inputs 1,2,3,..., n into the computer and calculates the average. The computer shows that there are only n-1 numbers, with an average of 26.2. What is the missing number?
• 11. X / 50-3 = x / 60-2 to solve the equation
• 12. (50 + 10) x = (x + 2) times 50 to solve the equation
• 13. The least common multiple of a number is 186 and the greatest common divisor is 31. What is the number
• 14. 18 and 69 least common multiple and greatest common factor
• 15. What are the least common multiple and the greatest common factor of 23 and 69? Come on,
• 16. Least common multiple of 24 and 46 Come on! The least common multiple of 18 and 16
• 17. The least common multiple of 32 and 46 Use the formula to show
• 18. What is the least common multiple of 46 and 59?
• 19. The least common multiple of 46 and 69
• 20. The least common multiple of 69 and 46