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To solve a quadratic inequality write the inequality in the standard form ax^2 + bx + c < 0 or ax^2 + bx + c > 0, find the roots of the quadratic equation. Use the roots to divide the number line into intervals. Determine the sign of the expression in that interval.
What is quadratic inequality?
A quadratic inequality is a second degree equation with an inequality sign
What is the rule for quadratic inequalities?
The rule for inequalities, when multiplying or divising by a negative number, flip the inequality sign
What is the difference between quadratic equation and quadratic inequalities?
The difference between quadratic equations and quadratic inequalities is that a quadratic equation is an equation that equates a quadratic expression to a constant or to zero, whereas a quadratic inequality is an inequality that involves a quadratic expression.
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