x^2-16>0
in what range x must lie ??
(1)-44
(3) -4>x4

• x^2-16>0
  =>x^2>16,
  x>+or-4
  therefore, -4>x>4
• 12 years agoHelpfull: Yes(25) No(7)
• x^2-16 can also b written as (x-4)(x+4)>0
  from the above equation conclusion will be
  x>-4 & x>+4
  hence the sol. will b x>4
• 12 years agoHelpfull: Yes(4) No(3)
• -4>x0
  x-4>0 x>4
  x+4>0 x>-4
• 12 years agoHelpfull: Yes(3) No(6)
• -44
  it is the ans.....
  
  
  
• 12 years agoHelpfull: Yes(1) No(8)
• (x+4)(x-4)>0
  therefore, x>-4 and x>4
  hence -44
• 12 years agoHelpfull: Yes(1) No(1)
• x must be greater than 4 or lessthan -4
• 11 years agoHelpfull: Yes(1) No(0)
• -4
• 12 years agoHelpfull: Yes(0) No(4)
• but 4^2-16 whetehr 4 is +ve or -ve.. ans will be zero and not grtr than 0
• 12 years agoHelpfull: Yes(0) No(1)
• range is -4
• 12 years agoHelpfull: Yes(0) No(0)