Inequality Calculator

Replace the default values in the quadratic inequality in the form of ax2 + bx + c below. The function crosses the x-axis at two places at most. These places are called the roots and they can be found using the quadratic formula:

Knowing these roots help us determine where the function is less than, equal to and greater than zero. Try out this calculator to see how it is done.

x2 + x + 0



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