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MATH 1414 Sections 1.7 Linear and Quadratic Inequalities. The linear cases are solves much like solving equations. If you divide or multiply by a negative the inequality must change directions. Why? In this course we shall represent solutions to inequalities in three manners: interval notation, number line, and set notation. Example 1. Example 2. Example 3. Example 4. Compound inequalities have the x in the middle. Isolate this x . Example 5. Example 6.
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Example 7. Solving quadratic inequalities will require three steps to find the answer. First, we must
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