+0  
 
0
49
1
avatar

help

 

 Jun 27, 2020
 #1
avatar+26007 
+1

You could just substitute the values given to see if the equation = 0

 

try x = -2          does it = 0         if yes , then that is one root   if no, then try +2

      try    1    and  then try -1         

 Jun 27, 2020

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