Centrale des maths - centraledesmaths.uregina.ca
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 Sujet: conjugate
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 Complex roots 2010-04-14 Lan pose la question :If b and c are real numbers so that the polynomial (x^2) + bx + c has 1 + i as a zero, find b + c.Penny Nom lui répond. Find the quadratic equation with roots at (3-i) and its complex conjugate 2008-04-22 Tiffany pose la question :Find the quadratic equation with roots at (3-i) and its complex conjugate.Penny Nom lui répond. Simplifying Radicals 1999-01-26 Mary pose la question :I would like to know how to simplify this question: ``` 4 __________________ squareroot7 + squareroot3 ``` I know the answer is (sqrt7 - sqrt3) but i would really love to know how to get that answer!! Thanks.Jack LeSage and Penny Nom lui répond.

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