+0  
 
0
30
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How many integers n satisfy (n-2)(n+4)<0?

Guest Oct 1, 2018
 #1
avatar+2319 
+1
  n+4 n-2 (n-2)(n+4)
n<4 - - +
-4 < n < 2 + - -
2 < n + + +
       

 

 

 

 

 

 

 

so we need the integers, -4 < n < 2, i.e.

 

-3, -2, -1, 0, 1

Rom  Oct 1, 2018

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