Answer:
A quadratic inequality is an equation of second degree that uses an inequality sign instead of an equal sign. Examples of quadratic inequalities are: x2 – 6x – 16 ≤ 0, 2x2 – 11x + 12 > 0, x2 + 4 > 0, x2 – 3x + 2 ≤ 0 etc. Solving a quadratic inequality in Algebra is similar to solving a quadratic equation.
Step-by-step explanation:
To solve a quadratic inequality, you follow these steps:
Move all the terms to one side of the inequality sign.
Factor, if possible.
Determine all zeros (roots, or solutions). ...
Put the zeros in order on a number line.
Create a sign line to show where the expression in the inequality is positive or negative.
