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The four possible combinations are:A = (+, +)

B = (+, -)

C = (-, +) and

D = (-, -)

In A and D, the two numbers have the same signs and the multiplication gives a positive answer.

In B and C, the two numbers have different signs and the multiplication gives a negative answer.

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โˆ™ 2015-01-17 20:36:51
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Q: When multiplying two integer what are the four possible combination of sign how can they be grouped into two integers?
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