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If X = 12 , Which of the following has the maximum value ?

If X = 12 , Which of the following has the maximum value ? Correct Answer ( x - 5 ) ( x - 3 )

x - 3= 12 - 3= 9(x - 7)(x - 9)=(12 - 7)(12 - 9)=5 × 3=15(x - 5)(x - 3)=(12 - 5)(12 - 3)=7 × 9=63 (answer:)(x - 8)(x - 7)=(12 - 8)(12 - 7)=4 × 5=20x - 2=12 - 2=10

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