g = -7
h=3
whats g + h, literally add -7 and -3 = -4
g - h is -7 - 3 = -10
h - g is 3 - (-7) or 3 +7 = 10
gh is (7)(-3) = -21
you should finish the rest....
1 -4
2 -10
3 10
4 -21
and you will need to figure the rest out
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