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?

Question

MCQ (Single)Splitting the Middle Term in Quadratic Equations

Which constant should be added and subtracted to solve the quadratic equation 4x² – √3x – 5 = 0 by the method of completing the square?

Check whether the equation 6x² – 7x + 2 = 0 has real roots, and if it has, find them by the method of completing the squares.