https://r2.erweima.ai/mathbot/image/1726909074473hmw3vhqx.jpg

The image shows a set of math problems under the title "Bài 7: Thực hiện phép tính (tính nhanh)" (translated: "Problem 7: Perform the calculation (calculate quickly)"). Here are the questions visible from the image:

**a) \( 9^3 - 1 \)**  
**b) \( 102^2 + 2^2 - 4 \times 102 \)**  
**c) \( 47.53 \)**  
**d) \( 157^2 + 43^2 + 86.157 \)**  
**e) \( 999^2 - 1 \)**  
**f) \( 73^2 + 27^2 + 54.73 \)**  
**g) \( 117^2 + 17^2 - 234.17 \)**  
**h) \( 101.99 \)**

Let me know which problems you'd like me to solve, or if you'd like a detailed explanation for any of these!

Bài 7: Thực hiện phép tính (tính nhanh): a) 9^3 - 1, b) 102^2 + 2^2 - 4 * 102, c) 47.53, d) 157^2 + 43^2 + 86.157, e) 999^2 - 1, f) 73^2 + 27^2 + 54.73, g) 117^2 + 17^2 - 234.17, h) 101.99

Explore quick math problems involving exponentiation and basic arithmetic. Problems include calculations like 9^3 - 1, 102^2 + 2^2 - 4 * 102, and more. Suitable for students in Grades 6-8.

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