Answers

2015-07-01T20:39:39+08:00
(+a) - (+b) = (+a) + (-b) : then apply the rule of addition.
(+a) - (-b) = (+a) + (+b) ; then apply the rule of addition.
(-a) - (+b) = (-a) + (-b) : then apply the rule of addition.
(-a) - (-b) = (-a) + (+b) ; then apply the rule of addition.
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thank you for answering
but where is the positive and negetive
:) :)
positive or negative what?
where is the positive and negative on those formulas
talino mo talaga mathgeek