Solve x² − 5x + 6 ≤ 0
Solve a quadratic inequality using its roots and a sign chart.
Solution
- Inequality 1x² − 5x + 6 ≤ 0
- Discriminant Δ = b² − 4ac = 1
- Roots x₁ = 2, x₂ = 3
- Sign chart The quadratic is positive outside the roots, negative between them.
- Solution [2, 3]
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