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| bio | website | |
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| location | ||
| age | ||
| visits | member for | 1 year, 2 months |
| seen | May 15 at 12:39 | |
| stats | profile views | 21 |
MN
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May 18 |
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Signs in binomial expansions Thank you; the gears clicked into place! Once the exams are over, I'll put on an answer that's -hopefully- as intuitive as I get it now. |
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May 12 |
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Signs in binomial expansions That doesn't tell why it was decided (apparently, that's how I was given it) that such terms, at face value, need the expansion with opposite signs. I added an (*) in the \$\$ so see there for what I meant. |
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May 12 |
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Conditions on roots of a quadratic Tomorrow's the exam. I'm keeping all this in mind and hoping for he best... |
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Apr 15 |
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Conditions on roots of a quadratic let us continue this discussion in chat |
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Apr 15 |
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Conditions on roots of a quadratic @KannappanS, Discriminant! I wrote it the other way as I remembered its pronunciation in class... So many faults in my educational system... Anyway, it's ($\Delta = b^2-4ac$). |
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Apr 15 |
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Conditions on roots of a quadratic He asked for my trial on the second one and so I did... I never intended it to be un-respectful and I knew it doesn't work in questions yet I only wanted it visible as the answer he requested. |
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Apr 15 |
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Conditions on roots of a quadratic Now what? {Extra Characters} |
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Apr 15 |
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Conditions on roots of a quadratic I tried it with the second and can't get the $x$ and $n+3$ out... Where can I post a photo? |
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Apr 15 |
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Conditions on roots of a quadratic Can't delete prev. comments. - @JohannesK, Isn't Vieta's formula where we use a discrement to extract the roots? I tried but that didn't work. |
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Apr 15 |
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Conditions on roots of a quadratic @GerryM, I'd said it was weird from the get go... It did actually use different case letters! - It's from my curriculum book, 10th grade equiv., Egypt. |
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Apr 15 |
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Conditions on roots of a quadratic But that would make $9a^2c = 2b^2$ which isn't the answer provided. It does seem logical and correct in steps but here they look for how good you followed the book even if it's incorrect. So I just need a confirmation that there's no other way to re-produce the answer provided. - I'll follow your steps and post the second one. |
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Mar 21 |
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Getting the grip of geometry and Algebra; books and resources for a beginner I'm afraid I can't try all those due to my bandwidth but I'll sure look for the title you emphasized and see if I could get a link for the whole collection and download it from a cafe or something. |
