Hello, Sean!
Krizalid is absolutely correct . . .
Find the set of values for which the graph of is above the xaxis.
Well, that gives us the inequality: . . Right!
If the product of those two factors is positive:
. . (1) both factors are positive, or
. . (2) both factors are negative.
Case (1): . . The "stronger" inequality is: .
Case (2): . . The "stronger" inequality is: .
Therefore, the graph is above the xaxis on the intervals: .
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Of course, if we were allowed to graph the function,
. . we could have "eyeballed" the answers. Code:

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o+o
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