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RULE OF NEGATIVES. Made by Yue Jun (2011). NEGATIVE & POSITIVE & MULTIPLICATION. a x b = (+)(+) ab = + ab -a x b = (-)(+) ab = - ab a x –b = (+)(-) ab = - ab -a x –b = (-)(-) ab = + ab. NEGATIVE & POSITIVE & DIVISION. a / b = (+) a/ (+) b = + a/b

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Rule of negatives

RULE OF NEGATIVES

Made by Yue Jun (2011)


Negative positive multiplication
NEGATIVE & POSITIVE & MULTIPLICATION

a x b = (+)(+)ab = +ab

-a x b = (-)(+)ab = -ab

a x –b = (+)(-)ab = -ab

-a x –b = (-)(-)ab = +ab


Negative positive division
NEGATIVE & POSITIVE & DIVISION

a / b = (+)a/(+)b = +a/b

-a / b = (-)a/(+)b = -a/b

a / –b = (+)a/(-)b = -a/b

-a / –b = (-)a/(-)b = +a/b


General rule
GENERAL RULE

If there is an odd number of negative numbers, the sign is (-)

If there is an even number of negative numbers, the sign is (+)


Examples
EXAMPLES

(-a)3 = (-a)(-a)(-a) = -a

(-b)3(-a) = (-b)(-b)(-b)(-a) = +ab3

Therefore, what is (-c)220?

Answer: (-c)220 = c220


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