Question

Tìm n biết   6×2ⁿ+3 x 2ⁿ=4608

Answer 1

<=> 2ⁿx(6+3)=4608

<=>2ⁿx9=4608

<=>2ⁿ=512

<=>2ⁿ=2⁹

=>n=9

Answer 2

=> (6 + 3).2ⁿ = 4608

=> 9.2ⁿ = 4608

=> 2ⁿ = 4608 : 9 

=> 2ⁿ = 512 = 2⁹ => n = 9 

Vậy...

Answer 3

   6×2ⁿ+3 x 2ⁿ=4608

=> (6 + 3).2ⁿ = 4608

<=> 9.2ⁿ = 4608

<=> 2ⁿ = 4608 : 9 

<=> 2ⁿ = 512 = 2⁹ 

=> n = 9 

Vậy.......................

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