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MacPfister
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If 2 + sqrt(3) is a polynomial root, name another root of the polynomial and explain how you know it must also be a root. (Explain in 1 or 2 sentences)
 one year ago
 one year ago
MacPfister Group Title
If 2 + sqrt(3) is a polynomial root, name another root of the polynomial and explain how you know it must also be a root. (Explain in 1 or 2 sentences)
 one year ago
 one year ago

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myininaya Group TitleBest ResponseYou've already chosen the best response.0
I guess they are defining this polynomial to have real coefficients even though they didn't say that. So when you solve \[ax^2+bx+c=0\] You get \[x=\frac{b \pm \sqrt{b^24ac}}{2a}\]. See of you can use that here. :)
 one year ago

myininaya Group TitleBest ResponseYou've already chosen the best response.0
I'm also assuming that this polynomial has a quadratic factor. Such a weird question. Seems incomplete.
 one year ago

MacPfister Group TitleBest ResponseYou've already chosen the best response.0
I need it in sentences.. :/ sorry
 one year ago

MacPfister Group TitleBest ResponseYou've already chosen the best response.0
That doesn't answer the question either though, cause it's asking what would be another root if one of the polynomial roots is 2+ sqrt(3)
 one year ago

myininaya Group TitleBest ResponseYou've already chosen the best response.0
Yes it does.
 one year ago

myininaya Group TitleBest ResponseYou've already chosen the best response.0
That is 2 general solutions to a general quadratic above.
 one year ago

myininaya Group TitleBest ResponseYou've already chosen the best response.0
A quadratic is a polynomial.
 one year ago
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