4

Could you share the problem or topic you’re working on? If you’d like, here are 4 quick practice problems whose answers are 4, with brief solutions:

1. Algebra

• Problem: Solve for x: 2x - 4 = 4
• Solution: 2x = 8 → x = 4. Answer: 4.

2. Calculus

• Problem: Compute the definite integral ∫ from 0 to 2 of 2x dx
• Solution: Antiderivative is x^2; evaluate from 0 to 2: 2^2 - 0^2 = 4. Answer: 4.

3. Logs

• Problem: Evaluate log base 2 of 16
• Solution: 2^4 = 16, so log_2(16) = 4. Answer: 4.

4. Geometry

• Problem: Area of a square with side length 2
• Solution: A = s^2 = 2^2 = 4. Answer: 4.

If you want, I can tailor a set of practice problems to your exact course (e.g., linear algebra, statistics, etc.) or create more problems at a chosen difficulty.