Atraeus is solving the quadratic equation by completing the square.7x2 – 14x + 6 = 0 7x2 – 14x = –6 A(x2 – 2x) = –6

Factor 7 out of the left side: 7x² − 14x = 7(x² − 2x). Therefore, the value of A is 7, which is choice D.

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