Comment by 🐐 namark
Re: "Is there any particular reason why exponentiated negative…"
Khanacademy's good, glad it's sill alive. Khan is cool, made some nice math videos, radical revolutionary ideas on education, totally metal, but everyone else involved seems kind of meh, so they stalled. I remember vihart got involved at some point, and that's when I realized that all is lost - too happy, can't revolution when you are so happy. The website and the practise problems part are super lame, just get a decent book and do practice problems from there maybe idk, you are supposed to do a ton of them to get into the zone start churning through at some point, pressing your pen down way too hard from sheer adrenaline, can't do that with their sluggish web UI.
IXL never heard.
Feb 25 · 2 months ago
1 Later Comment
🗡️ The_Jackal [OP] · Feb 25 at 19:07:
@namark I'll probably look somewhere for practice books for different grades, or at least download a PDF of them. I had already decided after going through Khan and taking notes that I'd go back over everything with some good textbooks on the subject.
Original Post
Is there any particular reason why exponentiated negative numbers must be in parentheses like this: (-2)³ instead of being written like -2³? I looked around for a little bit and so far it seems like it's to show that it specifically shows that it's the result of negative 2 multiplying itself 3 times and not specifically the negative version of 2³. Is it to clear up ambiguity, like making sure you'd realize (-2)⁴ is 16 and not a round about way of saying negative 16 like -2⁴ might be interpreted...