Mathematics, 12.08.2020 07:01 quinteroalex2001

How can the rule stating “a function can only have 1 output value” be correct when there are quadratic equations that when solved leave you with two X values? Such as the expression 2x^2+8x-8 = 0

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How can the rule stating “a function can only have 1 output value” be correct when there are quadrat...