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solve x2-2x=3 by completing the square solve x^2+2x-3=0 by completing the square x^2-2x=3 solve by completing the square solve the quadratic equation x^2-2x-3=0 by completing the square solve by method of completing the square x2-2x-3=0 2x squared answer how to solve complete the square 3 times 2x squared
