Solve x3 -9 x2 +26 x -24< 0.

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sarahlee

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Section 4 Inequalities

4) Solve x3 -9 x2 +26 x -24< 0.
Answer: (Correct to 3 decimal places). If there is no upper bound, enter 999 as the value, i.e. x < 999. If there is no lower bound, enter -999 as the value, i.e. -999 < x or x > -999. List your inequalities from the lowest range to the highest range.
x <
, < x < , x > ,
 
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Section 4 Inequalities
4) Solve x3 -9 x2 +26 x -24< 0.
Answer: (Correct to 3 decimal places). If there is no upper bound, enter 999 as the value, i.e. x < 999. If there is no lower bound, enter -999 as the value, i.e. -999 < x or x > -999. List your inequalities from the lowest range to the highest range.
x <
, < x < , x > ,

Presumably this is a cubic inequality: x3 - 9x2 + 26x - 24 < 0. You'll need to factor it first (try rational root theorem), then use the method taught here.
 
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