Solving Quadratic Inequalities
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Directions:Solve the following quadratic inequality (to the nearest tenth).
 
Problem:x2 + 6x - 40 ≥ 0
 
Factor.(x + )(x + ) ≥ 0
Set factors equal to zero.
(Find critical values.)
x + = 0 x + = 0
Solve for x.x =  x =
Write solution.x x