Find the product of all constants t such that the quadratic x^2 + tx - 15 can be factored in the form (x + a)(x + b), where a and b are integers.


[factoring](/questions/factoring_35)
====================================


Factors of    -15  =   a , b

 

  a    b

-1   15        t =    14

-15  1         t =   -14

-3    5         t =  -2

5   - 3         t  = 2

 

 

![cool](/img/emoticons/smiley-cool.gif "cool") ![cool](/img/emoticons/smiley-cool.gif "cool") ![cool](/img/emoticons/smiley-cool.gif "cool")

