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[–] 6 points 1 year ago* (1 child)

Oh yeah, that's a fun one.

Where I live, this would be considered juxtaposition, at least by uni professors and scientific community, so 2(4-2) isn't the same as 2×(4-2), even though on their own they're equal.

This way, equations such as 15/2(4-2) end up with a definite solution.

So,

15/2(4-2) = 3.75

While

15/2×(4-2) = 15

Usually, however, it is obvious even without assuming juxtaposition because you can look at previous operations. Not to mention that it's most common with variables (Eg. "2x/3y").

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  • [–] 0 points 1 year ago

    Where I live, this would be considered juxtaposition

    Not just where you live, everywhere, in Maths textbooks. Adults forgetting the rules (and unqualified U.S. teachers not teaching what's in the textbooks) is another matter altogether.

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