Solving the inequality

Stacie0079

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Sep 28, 2011
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I find this so frustrating! Can anyone explain to me the step by step process for finding the answer to an inequality? One of the examples from class was x2-16>0 I'm not sure how to find this answer.
 
I find this so frustrating! Can anyone explain to me the step by step process for finding the answer to an inequality? One of the examples from class was x2-16>0 I'm not sure how to find this answer.

Can you construct a values table

where (x-4)(x+4)>0, observe how the sign of the product changes

x-4 and x+4 alike, have roots,(4 and -4)

-4 4
x-4
x+4
 
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