✓ Solution
Step-by-Step Solution
About the Inequalities Calculator
The Inequalities Calculator solves linear, quadratic, and absolute value inequalities with step-by-step solutions and interval notation.
Key Formulas
Linear Ineq.
Solve like equation; flip sign if ÷ by negative
Quadratic Ineq.
Find roots, test intervals
Absolute Value
||x| < a| → −a < x < a
Compound AND
a < x < b → intersection
Compound OR
x < a or x > b → union
Interval: Open
( ) excludes endpoint