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Module 18 StudyStack
Quadratic Inequalities
| Question | Answer |
|---|---|
| (x-3)(x+4)≤0 | [4,-3] |
| x^2>x | (-∞,0)U(1,∞) |
| x^4-26x^2+25≥0 | (-∞,-5]U[-1,1]U[5,∞) |
| (x+1)/(x-4)≥0 | (-∞,-1]U(4,∞) |
| (x-4)(x-2)(x-9)>0 | (2,4)U(9,∞) |
| 5/(x+5)<2 | (-∞,-5)U(-5/2,∞) |
| x^2-10x+9>0 | [1,9] |
| x(x-5)(x+5)≤0 | (-∞,-5]U[0,5] |