What times what equals - 120 and adds up to 14

Hello!,

-200 + 80 = - 120 then

-120+134=14

You can solve it with the following method:

a+b=14

a=14-b

axb=-120

(14-b) b=-120 (replace the a value in terms of b found in the last step)

-b²+14b=-120

-b²+14b+120=0

using the quadratic equation you should get b = 20 and - 6