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Inequality Solver
Inequality Solver
Solve linear and quadratic inequalities on a number line
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Coefficient a (x²)
Coefficient b (x)
Constant c
Inequality
< — less than 0
≤ — less than or equal to 0
> — greater than 0
≥ — greater than or equal to 0
1x² + (-1)x + (-2) > 0
Solution
x < -1 or x > 2
Solution set
(−∞, -1) ∪ (2, +∞)
Critical points
-1, 2
Discriminant (b² − 4ac)
9
Parabola
Opens upward
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Number line of the solution set
A number line with the values of x that satisfy the inequality shaded. Filled circles mark included endpoints, hollow circles mark excluded endpoints, and arrows show the solution continuing to infinity.
-3
-2
-1
0
1
2
3
4
