Question 175
Solve for all real numbers $x$ satisfying
$$
x + \sqrt{x-1} + \sqrt{x+1} + \sqrt{x^{2}-1} = 4
$$
$$
x + \sqrt{x-1} + \sqrt{x+1} + \sqrt{x^{2}-1} = 4
$$
MathNet 2026 — Part 07 Question 175
Math Olympiad Vault · MathNet 2026 — Part 07
Math Olympiad Vault · MathNet 2026 — Part 07