SOLUTION: Graph the solution to the following inequalities on the number line. (x-2)(x+7) greater than or equal to _> 0

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Question 762681: Graph the solution to the following inequalities on the number line.
(x-2)(x+7) greater than or equal to _> 0

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
Graph the solution to the following inequalities on the number line.
(x-2)(x+7) greater than or equal to _> 0
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Solve the Equality:
x = 2 or x = -7
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Draw a number line and plot x = -7 and x = 2.
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Test a value in each of the number line intervals:
(x-2)(x+7) > 0
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Let x = -10 you get -*- > 0 ::: true
Let x = 0 you get -*+ > 0 ::: false
Let x = 10 you get +*+ > 0 ::: true
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Solution:: (-100,-7]U[2,+oo)
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Cheers,
Stan H.
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