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Algebra Level pending

If $${b_1}{b_2} = 2({c_1} + {c_2})$$ then at least one of the equations $$x^2 + {b_1}x + c_1 = 0$$ and $$x^2 + {b_2}x + c_2 = 0$$ has $$\text{__________}$$.

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