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The roots of the quadratic equation  \(z^2 + az + b = 0\) are \(-7 + 2i\) and \(-7 -2i\). What is \(a+b\)?

 Apr 26, 2020
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The quadratic is (z + 7)^2 - 4 = 0 ==> z^2 + 14z + 45 ==> a + b = 59

 Apr 26, 2020

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