If x2-16 > 0, what is the range of x

• x2-16>0
  can be written as- x^2-4^2>0
  (x+4)(x-4)>0
  hence ans- x belongs to (-infinity,-4)U(4,infinity).
• 11 years agoHelpfull: Yes(5) No(0)
• X>4
  if x=4 then 4^2-16=0(not correct)
  if x
• 11 years agoHelpfull: Yes(0) No(1)