Which formula is used to find the analytic formula of the known vertex coordinates of quadratic function?

The solution is: a = 3; b = 6; C = 1, that is, the analytic formula of the function is: y = 3x ^ 2 + 6x + 1 a (1). First of all, you should remember the vertex coordinate formula of quadratic function, just look at the textbook! Then, according to the

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