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Functions, EXT1 EQ-Bank 1 MC

What is the solution to the inequality

\((x-2)(x+1)(x-3)>0\)

  1. \(x<-1 \ \cup \ 2<x<3\)
  2. \(-1<x<2 \ \cup \ x>3\)
  3. \(x<-1 \ \cup \ x>3\)
  4. \(-1<x<3\)
Show Answers Only

\(B\)

Show Worked Solution

\(\text {Zeros at}\ \  x=2, x=-1 \ \ \text {and} \ \ x=3\)

\(\text{At} \ \ x=0: \ (-2)(1)(-3)>0\)
 

\(\therefore \text {Graph}\ >0 \ \ \text{for}\ \ -1<x<2 \ \cup \ x>3\)

\(\Rightarrow B\)

Filed Under: Inequalities Tagged With: Band 3, smc-6643-05-Cubics, syllabus-2027

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