how many integers x satisfy the equation (x^2 - x -1)^)x+2)=1?

• ans is 4
  satisfied by -2,-1,0,2
• 10 years agoHelpfull: Yes(2) No(1)
• ans is 3 i.e 0 ,2 & -1...by putting only these values in LHS..we get 1 in rhs.
• 10 years agoHelpfull: Yes(1) No(1)
• ans:-2
  put x=2
  (4-2-1)=1
  (x+2)=2+2=4 i.e.1^4=1 therefore rhs=lhs
• 10 years agoHelpfull: Yes(0) No(0)