Find A Quadratic Equation With Integral Coefficients Having The Given Roots: 4 + 2i, 4 - 2i?

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2 Answers

hongqin wang Profile
hongqin wang answered
The equation is x^2-8x+17=0.
Oddman Profile
Oddman answered
The factored form of the equation is
  (x - (4+2i))(x - (4-2i)) = 0
When multiplied out, it becomes
  x^2 - 8x + 20 = 0

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