1969 AHSME Problems/Problem 14
Problem
The complete set of -values satisfying the inequality is the set of all such that:
Solution
Factor the difference of squares. Note that the graph intersects the x-axis at when or , so check the sign of the result to see if it is positive. After testing, or or , so the answer is .
See also
1969 AHSC (Problems • Answer Key • Resources) | ||
Preceded by Problem 13 |
Followed by Problem 15 | |
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