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A cubic polynomial with rational coefficients has the roots 7+√5 and 1/4. Find on additional root. A. 7-√5 B. 7+√5 C. 5+√7 D. 5-√7

A cubic polynomial with rational coefficients has the roots 7+√5 and 1/4. Find on additional root. A. 7-√5 B. 7+√5 C. 5+√7 D. 5-√7
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A cubic polynomial with rational coefficients has the roots 7+√5 and 1/4. Find on additional root.

A. 7-√5
B. 7+√5
C. 5+√7
D. 5-√7

User Empty Space
by
8.4k points

1 Answer

3 votes

Answer:

Additional root of 7+√5 and 1/4 is:

D.5-√7

User Dave Everitt
by
7.5k points
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