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Need help #Brilliant Community

I have recently been solving some problems on polynomials an arbitrary example of which is

If p(x)= x^3+px^2+qx +10 has the roots a,b and c then what is the value of p+q?

Note-This is an arbitrary example and not a real question.

So, I have been facing problems in such questions and need your help.

How do I approach such questions? Any brilliant wiki or a website or a book for reference? Thank you in advance.

Note by Mehul Arora
2 years, 9 months ago

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1 vote

  Easy Math Editor

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Check out Vieta's Formula, especially the generalization to higher degrees.

Calvin Lin Staff - 2 years, 9 months ago

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Thank you sir.. It really helped me.

Mehul Arora - 2 years, 9 months ago

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@RajdeepDhingra @Azhaghu @Pranjal @sandeep sir @satvik @Parth @Krishna

I do not know if all if you were @mentioned properly but kindly help me...

Mehul Arora - 2 years, 9 months ago

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Sorry bro , I saw this just now.Sir has already helped you.Next time @mention properly.When you mention then it turns green eg - Like @Rajdeep Dhingra . \(\ddot\smile\)
P.S - You asked me for NT problems. Well , you can check out Open Proof Contest 2

Rajdeep Dhingra - 2 years, 9 months ago

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Yeah.. I saw that Thanks

Mehul Arora - 2 years, 9 months ago

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well your comment isn't showing any link and according to me brilliant doesn't show a notification on being mentioned in a comment.

Ashwin Upadhyay - 2 years, 9 months ago

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Well you get an email. \(\ddot\smile\)

Rajdeep Dhingra - 2 years, 9 months ago

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@Rajdeep Dhingra oops i didn't know that :p

i have a question too : if he didn't mention properly how do you and others came to know ?? :\

Ashwin Upadhyay - 2 years, 9 months ago

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Comment deleted Mar 18, 2015

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Comment deleted Mar 19, 2015

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@Ashwin Upadhyay I was just going through some notes and this caught my eye.

Rajdeep Dhingra - 2 years, 9 months ago

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@Rajdeep Dhingra you are in which class??

Ashwin Upadhyay - 2 years, 9 months ago

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@Ashwin Upadhyay 8

Mehul Arora - 2 years, 9 months ago

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