When 2 NEGATIVE SIGNS (NEGATIVE FORCE FIELDS) are together (-) (-) , the numbers are

multiplied and the first NEGATIVE SIGN is turned upright and we call it a CHANGING SIGN and

the 2 signs are rearranged to form a + sign. The first NEGATIVE SIGN (-) is turned to look like

this | called a CHANGING SIGN. With the second NEGATIVE SIGN it makes a POSITIVE SIGN (+).

Example:  (- 4)  (- 3)  =  POSITIVE   12         Example:  (- 5)  (- 6)  =  POSITIVE   30

Example: (- 2)  (- 9)  =  POSITIVE   18

[QUESTION    37]        (-  2)  (-  3)   =  6