Mathematics, 23.04.2021 23:00 brilove47

If using the method of completing the square to solve the quadratic equation x^2+11x+30=0x 2 +11x+30=0, which number would have to be added to "complete the square"?

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If using the method of completing the square to solve the quadratic equation x^2+11x+30=0x 2 +11x+30...