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Solve the inequality x^3 + 4x > 5x^2 + 28x + x^3. Write your answer in interval notation.

 Apr 1, 2024
 #1
avatar+409 
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0>5x2+24x

x(5x+24)<0

Take interval between two solutions, because quadratic points up, and you want the part below the x axis.
Therefore the interval is (245,0).

 Apr 1, 2024

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