Let |x| = t ≥ 0. Then t² - 5t + 6 = 0 gives t = 2, 3. So x = ±2, ±3 = 4 solutions.
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JEE Main 2021 — Mathematics Algebra
medium
mcq
2021
Official previous-year question
Verified 30 May 2026.
Question
The number of solutions of the equation x² - 5|x| + 6 = 0 is:
Options
- A2
- B3
- C4
- D0
Solution
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