deethagod deethagod
  • 19-02-2018
  • Mathematics
contestada

what is the solution set of (x^2+x-6/x-7)<_0

what is the solution set of x2x6x7lt0 class=

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Аноним Аноним
  • 19-02-2018
x^2 + x - 6 
-------------   <=  0
  x - 7 

(x + 3)(x - 2)
---------------- <= 0
    x - 7

2 critical values are  x = -3 and x = 2

if x <= -3  the  the function <= 0  so that's one part of the solution
also x >= 2
x must be < 7  if its = 7 then the function is indeterminate.  and values between 2 and 7 will give negative valu to function

The answer is  choice A.


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