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Directrix
 one year ago
Best ResponseYou've already chosen the best response.0Have you tried any of these options? To test option a, factor x^2 + 2x + 1 = 0 to get (x + 1) * (x + 1) = 0 with x turning out to be 1 which is real. So, option a is out of the running as the answer.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.0Question: Have you studied yet about the discriminant of a quadratic equation? @ineedhelp178

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0You can find c by completing the square.

Directrix
 one year ago
Best ResponseYou've already chosen the best response.0This chart may help. @ineedhelp178 You are exprected to participate in the solution of the problem.
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