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3 cards from this section. Quick, good the night before a test.
Solve x² + 2x - 15 > 0
Factor the expression first.
Solve x² - 4x + 4 ≤ 0
Look for perfect square trinomial.
What is the first step in solving a quadratic inequality?
Think about how to arrange the terms.
True or False: An inequality of the form ax² + bx + c < 0 can have multiple solutions.
Consider how quadratic graphs behave.
Solve the inequality 4x² - 12x + 9 ≤ 0 and describe the implications of the solution geometrically.
What does the discriminant tell you about the roots?
For the inequality x² - 6x + 8 > 0, sketch the graph and indicate the solution set.
How does the graph behave around the roots?
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