SOLUTION: Solve: (x+7)(x-17)(x+6) > 0

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Question 316238: Solve:
(x+7)(x-17)(x+6) > 0

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!


The corresponding polynomial has exactly three zeros: -7, -6, and 17. That means the range of real values comprising the domain of the polynomial inequality is divided into four regions:









None of the endpoints are included because any of the finite endpoints would make the inequality equal zero.

Consider the sign of each factor for a selected value in each of the intervals:

From the first interval select -8:

: Invalid interval

From the second interval select -6.5:

: Values from this interval make the inequality true.

From the third interval select 0:

: Invalid interval

From the fourth interval select 18:

: Values from this interval make the inequality true.

The solution set is the interval:




John


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