Solve the inequality. (Enter your answer using interval notation.)

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Solve the inequality. (Enter your answer using interval notation.)

x2ex − 2ex < 0
 
Apr 14th, 2015

 ex(x2 -2) < 0

ex  is always positive.

So (x2-2) <0

x2 < 2

x < sqrt(2)

x > -sqrt(2)

-1.4142 < x , 1.4142

(-1.4142,1.4142)


Apr 14th, 2015

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Apr 14th, 2015
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