Which of the folowing is equal to the rational expression when x is not equal to 5 or -3? x^2+x-6/x^2-2x-15 a. x-2/x+3 b. x-2/x+5 c. x+3/x-5 d. x-6/x-5 fast i need answer for apex

For this case we have the following expression:
 
 Factoring the numerator we have:
 
 Factoring the denominator we have:
 
 Canceling similar terms we have:
 
 
 the folowing is equal to the rational expression when x is not equal to 5 or -3:
 
 Note: it seems that the answer is not between the options given. Please check the options again and verify that they are well written.

Logical equivalent of the give question is its contrapositive