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Which constant must be added and subtracted to solve the quadratic equation 9x^2 + 3/4 x – √2 = 0 by the method of completing the square?

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Which constant must be added and subtracted to solve the quadratic equation 9x2 + 3/4 x – √2 = 0 by the method of completing the square?

(A) 1/8 (B) 1/64 (C) 1/4 (D) 9/64

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Correct answer is (B) 1/64

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