VTMO 2026 - Grade 8 - Semifinal - SET 05 - Self-study Question 8

VTMO · VTMO 2026 - Grade 8 - Semifinal - SET 05 - Self-study

Question 8

How many integers $x$ satisfy $(x^2-1)(x^2-10)(x^2-20)<0$?

1. 0
2. 1
3. 2
4. 3
5. 4