if x^2-16>0,which of the following must be true?
-4>x>4
-4>x

• -4>x>4 is true because when we substitute more than 4 for x then only the value will be greater than o..
• 12 years agoHelpfull: Yes(10) No(5)
• values -4,-5,-6,-8.......all satisfy the equation so -4>x is correct
• 12 years agoHelpfull: Yes(7) No(5)
• x^2-16>0
  x^2-4^2>0
  (x+4)(x-4)>0
  x>-4 and x>4
  so, -44.
• 12 years agoHelpfull: Yes(2) No(6)
• -4>x is the right answer bcz it always satisfy the condition x^2-16>0
  
  but -4>x>4 does not satisfy this condition for value -3,-2,-1,0,1,2,3
• 12 years agoHelpfull: Yes(2) No(4)
• x>-4 bcoz
  (x-4)>0; x>4
  (x+4)>0; x>-4
  so x>-4 ans
• 12 years agoHelpfull: Yes(1) No(2)
• -4>x
• 12 years agoHelpfull: Yes(1) No(2)
• (x-4)(x+4)>0
  so,(x-4)>0 and (x+4)>0
  then
  x>4 and x
• 12 years agoHelpfull: Yes(0) No(2)
• x^2>16
  so x>4 or x
• 12 years agoHelpfull: Yes(0) No(3)