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Mathematics, 01.07.2020 23:01 skyyman

Mickey simplified the expression below. He then checked his work by substituting 4 for x. He noticed his two values were not equal. What was Mickey’s error when simplifying? Expression 2 x squared minus 4 x minus 9 minus x squared + 2 x + 3 Simplified Expression x squared minus 6 x minus 6

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Mickey simplified the expression below. He then checked his work by substituting 4 for x. He noticed...

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