6x^{2}+13x-5 ------------ < 0 |5x^{3}-10| I tried to do this with cases, but everything seems wrong, help would be greatly appreciated.
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Originally Posted by mikewezyk 6x^{2}+13x-5 ------------ < 0 |5x^{3}-10| I tried to do this with cases, but everything seems wrong, help would be greatly appreciated. First of all, note that (why?) Then, since for all , we can multiply both sides of the inequality by it without changing the inequality sign. So the solution to your inequality is .
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