Giải thích các bước nếu ko sẽ bị cờ đỏ. Đây là phải Toán và Anh nha. Ghi bản dịch và ko dịch giúp mìk 1. Solve √x + √x + √x+. . . = 2. 2. What is the maximum number of parts that can be obtained from cutting a circular disc using 3 straight cuts? 3. Find the next term of the following sequence: 2, 1, 3, 4, 7, ... 4. Solve for x and y in the following equation (x + 7)^2 + √y − 8 = 0. 6. A perfect number is a positive integer that is equal to the sum of its proper positive factors. Proper positive factors of a number are positive factors that are less than the number. For example, 6 = 1 + 2 + 3 is a perfect number because 1, 2 and 3 are the only proper positive factors of 6. Find the next perfect number. 7. If a and b are positive whole numbers such that a