117
WTF 🤦
(sh.itjust.works)
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
this post was submitted on 22 Jan 2024
117 points (100.0% liked)
Math Memes
1564 readers
55 users here now
Memes related to mathematics.
Rules:
1: Memes must be related to mathematics in some way.
2: No bigotry of any kind.
founded 1 year ago
MODERATORS
Explanation: How did they get from
x + 2 = x - 2
to
(x+2)(x-2)=0?
That's not a valid step.
To further clarify,
(x+2)(x-2) means to take the result of X+2 and times it with the result of x-2.
While it is common in algebra to bring the other side over, in order to simplify it, this isn't how you'd do it.
Here, you'd either cancel out the X (by removing it on both sides) or the -2 (by adding 2 to both sides) over to make 2=-2 or X+4=X respectively, which are both nonsense equations.
and multiply it with the result
Both are correct.
Not really, no… “times” is not a verb. You can multiply 2 by 2, and you can express that as “2 times 2”, but it is not correct to “times 2 by 2”.
...seems to be pretty correct to me:
https://www.wordreference.com/es/translation.asp?tranword=multiplying
Not sure what you think the relevance of a Spanish-English translation of the word “multiplying” has here… but nonetheless, you can see the correct usage of the word “multiply” versus the word “times” in my explanation above. For further clarification I would suggest a real dictionary, like Oxford, Meriam-Webster, etc.
I’m sure plenty of people will continue to make the mistake and it will become an accepted variant, though I wouldn’t consider it to be the correct usage of the word. Similar to the word “irregardless”, it’s a word, it’s used incorrectly in place of “regardless” very often, and therefore is an accepted variant. It’s just not the correct word to use. This is why I offered you my initial correction.
It's a more authoritative answer than a random comment by a grammar nazi.
Also the dictionaries you mentioned aren't great about including common informal language, which is what 'times by' is.
Yes I’m sure those at Oxford and MW could learn a thing or two from wordreference.com’s Spanish translation, which made the same mistake you did.
Thanks for calling me a nazi though, during otherwise polite conversation… have a good one.
I called you a grammar nazi because it's a perfect description of your behaviour in this conversation, right down to a need to be the only one who's right and being unable to tolerate colloquialisms.
https://en.m.wiktionary.org/wiki/grammar_Nazi
https://www.dictionary.com/e/pop-culture/grammar-nazi/
For a grammar nazi you sure don't seem to read all that carefully.
they start off with S' though... looks like they pretended to try to derive?
I thought that was their profile name
oh fuck me, you seem to be correct