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answer
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9 Apr 2020
What’s Wrong here? It is tempting to try to solve an inequality like an equation. For
instance, we might try to solve 
by multiplying both sides by x, to get x < 3, so the solution would be 
.But that’s wrong; for example, 
lies in this interval but does not satisfy the original inequality. Explain why this method doesn’t work (think about the sign of 
). Then solve the inequality correctly.
What’s Wrong here? It is tempting to try to solve an inequality like an equation. For
instance, we might try to solve by multiplying both sides by x, to get x < 3, so the solution would be .But that’s wrong; for example, lies in this interval but does not satisfy the original inequality. Explain why this method doesn’t work (think about the sign of ). Then solve the inequality correctly.
Deanna HettingerLv2
23 May 2020