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Find a monic polynomial of degree 4, in x, with rational coefficients such that \(\sqrt{2} +\sqrt{3}\) is a root of the polynomial.

 May 28, 2019

Best Answer 

 #1
avatar+5664 
+1

\(\text{based on the problem last night I can write this out right off}\\ p(x) = (x-\sqrt{2}-\sqrt{3})(x-\sqrt{2}+\sqrt{3})(x+\sqrt{2}-\sqrt{3})(x+\sqrt{2}+\sqrt{3})\\~\\ p(x) = x^4-10 x^2+1\)

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 May 28, 2019
 #1
avatar+5664 
+1
Best Answer

\(\text{based on the problem last night I can write this out right off}\\ p(x) = (x-\sqrt{2}-\sqrt{3})(x-\sqrt{2}+\sqrt{3})(x+\sqrt{2}-\sqrt{3})(x+\sqrt{2}+\sqrt{3})\\~\\ p(x) = x^4-10 x^2+1\)

Rom May 28, 2019

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