Question 1197520
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When you do not see a sign of arithmetic operation between two expressions, it means that this sign is omitted

and that the omitted sign is the multiplication sign.



It is the rule, traditionally accepted in Math from the earliest steps of learning.



It is not a fault of writing.


If you don't know this rule, it is only because nobody taught you this rule at the time when it should be done.



The responsibility on correct writing lies on the writer.


The responsibility on correct reading lies on the reader.



The responsibility on finding/checking errors lie on both.