Stanford University Admission Interview | Advanced Algebra Tricks | Find k=?

[@futuremuller5534]

Bravo! I loved 😍

[@Alamaths]

Great 👍. Thanks for the comments
Where are you watching from 💖?

[@HammedBisola-z3i]

Very good tutorial 🎉

[@Alamaths]

Thank you! 😊

[@Health-awarenesswithNafeesah]

Very educative 😊

[@Alamaths]

Thank you! 😃

[@SamsEconomicstutorials-jn9dc]

Great tutorials

[@Alamaths]

Thanks! ❤❤

[@thisistheskinofakillerbella]

Youre the teacher i wish i had at my classes 😪

[@Alamaths]

Great 👍. Thanks for the comments
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[@ZekeRaiden]

This is equivalent to k^2 (1-k), which means k must be negative. k=-1 is too small: (-1)^2 - (-1)^3 = 1 - (-1) = 2. k=-3 is too big: (-3)^2 - (-3)^3 = 9 -(-27) = 36. Thus, for integer values of k, only -2 will work, and it does: (-2)^2 - (-2)^3 = 4 - (-8) = 12. From there, polynomial long division is much more efficient at identifying the remainder, and almost certainly expected for a "Stanford" admission question.

[@Alamaths]

Yes. Thanks for the comments 👍
Are you a maths teacher 💖?

[@ZekeRaiden]

@@Alamaths No, but I have been a math tutor for many years.

[@Alamaths]

@@ZekeRaiden okay. That's fine.
Nice to meet you 😊

[@warrenmiller2044]

I convereted it to k^2 + |-k|^3 and it was self explanatory

[@Alamaths]

Yes. Thanks for the comments 👍
Where are you watching from 💖?

[@AdegbeyeArafatOluwaseun]

Nice one 🎉

[@Alamaths]

Thanks 🔥

[@Alamaths]

Thanks 🔥

[@MathMasteryMinds]

🎉

[@Alamaths]

Thanks bro😊

[@יהונתןמימון-ח1ג]

damn i did it completely differently,
the equation equals to -(k+2)^3 +7(k+2)^2 -16(k+2) = 0 so first answer is -2 the other two you get from The roots of a quadratic equation just like you did

[@Alamaths]

Wow, thanks for the comments 👍
Are you a professor of maths 💖?

[@יהונתןמימון-ח1ג]

@@Alamaths lol no not even a student, ill take this compliment tho

[@Alamaths]

@@יהונתןמימון-ח1ג thanks

[@gopagon2114]

K is -2

[@Alamaths]

Thank you so much for the comments 👍 💗

[@ShobhitGarhwal]

-2?

[@Alamaths]

Great 👍 Thanks for the comments
Where are you watching from 💖?

[@ShobhitGarhwal]

@@Alamaths Currently my study table.

[@HammedBisola-z3i]

Very good tutorial 🎉

[@Alamaths]

Thanks❤