Inequality Calculator
Get the solution set in interval notation with a full sign chart. The solver remembers to flip the inequality when dividing by a negative and never includes points where a denominator is zero.
How to use the inequality calculator
- Use <, >, <= or >= (or ≤, ≥).
- Compound inequalities like 1 < 2x + 3 < 7 are supported.
- Read the sign chart to see why each interval is included or excluded.
Examples
x² − x − 6 > 0
Answer: (−∞, −2) ∪ (3, ∞)
−2x + 4 ≥ 10
Answer: x ≤ −3