Yes an No.
You can have blood type AB in following situations:
AO+BO
AO+BB
AA+BO
AA+BB
AB+BB
AA+AB
AB+AB
So there's more possible ways to get type AB other than the combination of ABs.
yes because ab plus bc is ac
Commutativity.
The existence of the additive inverse (of ab).
associative property
the midpoint of AB.
C minus B equals AB
ab=1a+1b a is equal to either 0 or two, and b is equal to a
If, as is normal, ab represents a times b, etc then ab + ab + cc = 2ab + c2 which is generally not the same as abc.
No, A+B is left as A+B AB would be A x B
NM equals 2x + 1, as stated in the question!
An exothermic chemical reaction.
If you do not assume that "plus" is commutative, all that can be said that it is equal to A plus B.