F- meaning "FIRST" (What is the product of the first terms?), x², 2x, O- meaning "OUTER" (What is the product of the outer terms?), 3x2, 3x, I - meaning "INNER" (What is the product of the inner terms?), 3x, 2x, L - meaning "LAST" (What is the product of the last terms?), 5, 6

The Mystery Equation (x + 2) (x + 3)

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