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The roots of the quadratic equation $z^2 + bz + c = 0$ are $-7 + 2i$ and $-7 - 2i$. What is $b+c$?

 Feb 3, 2022
 #1
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(x +7+2i)(x+7-2i)     expand and simplify to

x^2 + 14x + 53        <======= take it from here

 Feb 3, 2022

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