Question: If the graph of the quadratic function f(x) = x2 + dx + 3d has its vertex on the x-axis, what are the possible values

If the graph of the quadratic function f(x) = x2 +

If the graph of the quadratic function f(x) = x2 + dx + 3d has its vertex on the x-axis, what are the possible values of d? (Enter your answers as a comma-separated list.) d= What if f(x) = x2 + 3dx - d' + 1? (Enter your answers as a comma-separated list. ) d =

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