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Matematika
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1 Jawaban
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1. Jawaban alex422
[tex]fog(2) = {(x + 2)}^{2} - 9 = {x}^{2} + 4x + 4 - 9 = {x}^{2} + 4x - 5 = 4 + 8 - 5 = 7[/tex]