JEE Main2013MathematicsBasics of MathematicsActual
The least integral value of x such that x-5 x^2+5 x-14 >0 , satisfies :
Options
- A^2+3 -4=0
- B^2-5 +4=0
- C^2-7 +6=0
- D^2+5 -6=0
Correct answer
A. ^2+3 -4=0
Step-by-step solution
aligned & x-5 x^2+5 x-14 >0 x^2+5 x-14 < x-5 & x^2+4 x-9 < 0 & =-5,-4,-3,-2,-1,0,1 aligned =-5 does not satisfy any of the options =-4 satisfy the option (a) ^2+3 -4=0