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8jan

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Thank you very much, jieheng.

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IMG_5888another method (let u)

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4^n + 2^2n – 3 = 3^2 / 2^3

2^2n + 2^2n ÷ 8 = 9 / 8

2^2n (1 + 1/8) = 9/8

2^2n = 1

2^2n = 2^0

2n = 0

n=0

 

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Thank you very much, Khong Pek Mao.

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