Comparing a cubic with a horizontal level

Comparing a cubic with a horizontal level

6 marks
TGM Original
Use a graph of y=(x+2)(x-1)(x-2) and the horizontal line y=4 to solve (x+2)(x-1)(x-2)>4.

Solution:

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Answer:\(\frac{1-\sqrt{17}}2<x<0\) or \(x>\frac{1+\sqrt{17}}2\).

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