6568
-190
109
155
-144
The numbers are: 20 and -48
-9.22043 and 18.22043 (to 5 dp).
736
-82
you could multiply 84 by 10 = 840 then multiply 84 by 2 = 168 add these two numbers = 1008
The factor pairs of 168 are (168,1)(84,2)(56,3)(42,4)(28,6)(24,7)(21,8)(14,12) None of them add up to or differ by 9. (3 and 6) and (2 and 7) are factors of 168.
Well you can multiply 2 and 2 and it will give you 4 when u add