Loading EasyEquate...
Solves linear and quadratic inequalities with interval solutions, sign reversal test points, and an interactive real number line.
Enter any equation like 2x + 8 = 20 or x² - 5x + 6 = 0 to get step-by-step solutions.
Identifies the critical zero-crossings where the polynomial changes sign along the continuous real axis.
Tests sample points in each region to determine whether the function values are strictly positive or negative.
Instantly plots shaded solution rays with open ○ or closed ● boundary circles.