SOLUTION: solve this -x3-x2-x>0

Question 460856: solve this
-x3-x2-x>0
Answer by poliphob3.14(115) (Show Source): You can put this solution on YOUR website!
,multiply by -1 and reverse the sign of the inequality:
, factor out x; . The quadratic polynomial
is always positive because its discriminant is negative.
Therefore the product is negative when x<0.
Answer:The solution set of this inequality is { x| x<0 }.
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