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If x is real, then the expression (x²+34x-71)/(x²+2x-7) lies b/w 4 and 7 lies b/w 5 and 9 has no value b/w 4 and 7 has no value b/w 5 and 9


 If x is real, then the expression (x²+34x-71)/(x²+2x-7) 



  1. lies b/w 4 and 7

  2. lies b/w 5 and 9

  3. has no value b/w 4 and 7

  4. has no value b/w 5 and 9

Grade:12

2 Answers

Chetan Mandayam Nayakar
312 Points
9 years ago

let the value of the given expression be 'k',(x^2 +34x -71)=k(x^2 +2x-7),this is a quadratic equation in 'x', if x is real the discriminant is non-negative,this condition will yield an inequality involving a function of k, solving this inequality will yield the range of possible values of k, and hence the expression

Abhijat Pandey
31 Points
9 years ago

plz solve this for me.. i tried!

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